Measurement of J/ψ polarization in pp collisions at [Formula: see text]

An angular analysis of the decay J/ψ→μ+μ- is performed to measure the polarization of prompt J/ψ mesons produced in pp collisions at [Formula: see text]. The dataset corresponds to an integrated luminosity of 0.37 fb-1 collected with the LHCb detector. The measurement is presented as a function of transverse momentum, pT, and rapidity, y, of the J/ψ meson, in the kinematic region 2 Collapse

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Affiliation(s)

The LHCb Collaboration CERN, 1211 Geneva 23, Switzerland
R. Aaij Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
C. Abellan Beteta Universitat de Barcelona, Barcelona, Spain
B. Adeva Universidad de Santiago de Compostela, Santiago de Compostela, Spain
M. Adinolfi H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
C. Adrover CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
A. Affolder Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
Z. Ajaltouni CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
J. Albrecht Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
F. Alessio European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Alexander School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
S. Ali Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
G. Alkhazov Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
P. Alvarez Cartelle Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. A. Alves Sezione INFN di Roma La Sapienza, Roma, Italy European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Amato Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
S. Amerio Sezione INFN di Padova, Padova, Italy
Y. Amhis LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
L. Anderlini Sezione INFN di Firenze, Firenze, Italy
J. Anderson Physik-Institut, Universität Zürich, Zürich, Switzerland
R. Andreassen University of Cincinnati, Cincinnati, OH United States
R. B. Appleby School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
O. Aquines Gutierrez Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
F. Archilli Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
A. Artamonov Institute for High Energy Physics (IHEP), Protvino, Russia
M. Artuso Syracuse University, Syracuse, NY United States
E. Aslanides CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
G. Auriemma Sezione INFN di Roma La Sapienza, Roma, Italy
S. Bachmann Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
J. J. Back Department of Physics, University of Warwick, Coventry, United Kingdom
C. Baesso Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
V. Balagura Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
W. Baldini Sezione INFN di Ferrara, Ferrara, Italy
R. J. Barlow School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
C. Barschel European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Barsuk LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
W. Barter Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
Th. Bauer Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
A. Bay Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
J. Beddow School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
F. Bedeschi Sezione INFN di Pisa, Pisa, Italy
I. Bediaga Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
S. Belogurov Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
K. Belous Institute for High Energy Physics (IHEP), Protvino, Russia
I. Belyaev Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
E. Ben-Haim LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
M. Benayoun LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
G. Bencivenni Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
S. Benson School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
J. Benton H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
A. Berezhnoy Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
R. Bernet Physik-Institut, Universität Zürich, Zürich, Switzerland
M.-O. Bettler Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
M. van Beuzekom Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
A. Bien Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
S. Bifani University of Birmingham, Birmingham, United Kingdom
T. Bird School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
A. Bizzeti Sezione INFN di Firenze, Firenze, Italy
P. M. Bjørnstad School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
T. Blake European Organization for Nuclear Research (CERN), Geneva, Switzerland
F. Blanc Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
J. Blouw Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
S. Blusk Syracuse University, Syracuse, NY United States
V. Bocci Sezione INFN di Roma La Sapienza, Roma, Italy
A. Bondar Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
N. Bondar Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
W. Bonivento Sezione INFN di Cagliari, Cagliari, Italy
S. Borghi School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
A. Borgia Syracuse University, Syracuse, NY United States
T. J. V. Bowcock Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
E. Bowen Physik-Institut, Universität Zürich, Zürich, Switzerland
C. Bozzi Sezione INFN di Ferrara, Ferrara, Italy
T. Brambach Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
J. van den Brand Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
J. Bressieux Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
D. Brett School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
M. Britsch Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
T. Britton Syracuse University, Syracuse, NY United States
N. H. Brook H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
H. Brown Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
I. Burducea Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
A. Bursche Physik-Institut, Universität Zürich, Zürich, Switzerland
G. Busetto Sezione INFN di Padova, Padova, Italy
J. Buytaert European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Cadeddu Sezione INFN di Cagliari, Cagliari, Italy
O. Callot LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
M. Calvi Sezione INFN di Milano Bicocca, Milano, Italy
M. Calvo Gomez Universitat de Barcelona, Barcelona, Spain
A. Camboni Universitat de Barcelona, Barcelona, Spain
P. Campana Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy European Organization for Nuclear Research (CERN), Geneva, Switzerland
D. Campora Perez European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Carbone Sezione INFN di Bologna, Bologna, Italy
G. Carboni Sezione INFN di Roma Tor Vergata, Roma, Italy
R. Cardinale Sezione INFN di Genova, Genova, Italy
A. Cardini Sezione INFN di Cagliari, Cagliari, Italy
H. Carranza-Mejia School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
L. Carson Imperial College London, London, United Kingdom
K. Carvalho Akiba Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
G. Casse Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
L. Castillo Garcia European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Cattaneo European Organization for Nuclear Research (CERN), Geneva, Switzerland
Ch. Cauet Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Charles Department of Physics, University of Oxford, Oxford, United Kingdom
Ph. Charpentier European Organization for Nuclear Research (CERN), Geneva, Switzerland
P. Chen Center for High Energy Physics, Tsinghua University, Beijing, China Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
N. Chiapolini Physik-Institut, Universität Zürich, Zürich, Switzerland
M. Chrzaszcz Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
K. Ciba European Organization for Nuclear Research (CERN), Geneva, Switzerland
X. Cid Vidal European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. Ciezarek Imperial College London, London, United Kingdom
P. E. L. Clarke School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
M. Clemencic European Organization for Nuclear Research (CERN), Geneva, Switzerland
H. V. Cliff Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
J. Closier European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Coca Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
V. Coco Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
J. Cogan CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
E. Cogneras CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
P. Collins European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Comerma-Montells Universitat de Barcelona, Barcelona, Spain
A. Contu Sezione INFN di Cagliari, Cagliari, Italy
A. Cook H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
M. Coombes H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
S. Coquereau LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
G. Corti European Organization for Nuclear Research (CERN), Geneva, Switzerland
B. Couturier European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. A. Cowan School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
D. C. Craik Department of Physics, University of Warwick, Coventry, United Kingdom
S. Cunliffe Imperial College London, London, United Kingdom
R. Currie School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
C. D’Ambrosio European Organization for Nuclear Research (CERN), Geneva, Switzerland
P. David LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
P. N. Y. David Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
A. Davis University of Cincinnati, Cincinnati, OH United States
I. De Bonis LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
K. De Bruyn Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
S. De Capua School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
M. De Cian Physik-Institut, Universität Zürich, Zürich, Switzerland
J. M. De Miranda Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
L. De Paula Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
W. De Silva University of Cincinnati, Cincinnati, OH United States
P. De Simone Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
D. Decamp LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
M. Deckenhoff Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
L. Del Buono LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
D. Derkach Sezione INFN di Bologna, Bologna, Italy
O. Deschamps CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
F. Dettori Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
A. Di Canto Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
H. Dijkstra European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Dogaru Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
S. Donleavy Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
F. Dordei Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
A. Dosil Suárez Universidad de Santiago de Compostela, Santiago de Compostela, Spain
D. Dossett Department of Physics, University of Warwick, Coventry, United Kingdom
A. Dovbnya NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
F. Dupertuis Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
R. Dzhelyadin Institute for High Energy Physics (IHEP), Protvino, Russia
A. Dziurda Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
A. Dzyuba Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
S. Easo European Organization for Nuclear Research (CERN), Geneva, Switzerland STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
U. Egede Imperial College London, London, United Kingdom
V. Egorychev Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
S. Eidelman Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
D. van Eijk Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
S. Eisenhardt School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
U. Eitschberger Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
R. Ekelhof Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
L. Eklund European Organization for Nuclear Research (CERN), Geneva, Switzerland School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
I. El Rifai CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
Ch. Elsasser Physik-Institut, Universität Zürich, Zürich, Switzerland
D. Elsby University of Birmingham, Birmingham, United Kingdom
A. Falabella Sezione INFN di Bologna, Bologna, Italy
C. Färber Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
G. Fardell School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
C. Farinelli Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
S. Farry School of Physics, University College Dublin, Dublin, Ireland
V. Fave Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
D. Ferguson School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
V. Fernandez Albor Universidad de Santiago de Compostela, Santiago de Compostela, Spain
F. Ferreira Rodrigues Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
M. Ferro-Luzzi European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Filippov Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia
M. Fiore Sezione INFN di Ferrara, Ferrara, Italy
C. Fitzpatrick European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Fontana Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
F. Fontanelli Sezione INFN di Genova, Genova, Italy
R. Forty European Organization for Nuclear Research (CERN), Geneva, Switzerland
O. Francisco Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
M. Frank European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Frei European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Frosini Sezione INFN di Firenze, Firenze, Italy
S. Furcas Sezione INFN di Milano Bicocca, Milano, Italy
E. Furfaro Sezione INFN di Roma Tor Vergata, Roma, Italy
A. Gallas Torreira Universidad de Santiago de Compostela, Santiago de Compostela, Spain
D. Galli Sezione INFN di Bologna, Bologna, Italy
M. Gandelman Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
P. Gandini Syracuse University, Syracuse, NY United States
Y. Gao Center for High Energy Physics, Tsinghua University, Beijing, China
J. Garofoli Syracuse University, Syracuse, NY United States
P. Garosi School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
J. Garra Tico Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
L. Garrido Universitat de Barcelona, Barcelona, Spain
C. Gaspar European Organization for Nuclear Research (CERN), Geneva, Switzerland
R. Gauld Department of Physics, University of Oxford, Oxford, United Kingdom
E. Gersabeck Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Gersabeck School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
T. Gershon European Organization for Nuclear Research (CERN), Geneva, Switzerland Department of Physics, University of Warwick, Coventry, United Kingdom
Ph. Ghez LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
V. Gibson Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
V. V. Gligorov European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Göbel Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
D. Golubkov Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
A. Golutvin Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia European Organization for Nuclear Research (CERN), Geneva, Switzerland Imperial College London, London, United Kingdom
A. Gomes Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
H. Gordon Department of Physics, University of Oxford, Oxford, United Kingdom
C. Gotti Sezione INFN di Milano Bicocca, Milano, Italy
M. Grabalosa Gándara CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
R. Graciani Diaz Universitat de Barcelona, Barcelona, Spain
L. A. Granado Cardoso European Organization for Nuclear Research (CERN), Geneva, Switzerland
E. Graugés Universitat de Barcelona, Barcelona, Spain
G. Graziani Sezione INFN di Firenze, Firenze, Italy
A. Grecu Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
E. Greening Department of Physics, University of Oxford, Oxford, United Kingdom
S. Gregson Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
O. Grünberg Institut für Physik, Universität Rostock, Rostock, Germany
B. Gui Syracuse University, Syracuse, NY United States
E. Gushchin Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia
Yu. Guz Institute for High Energy Physics (IHEP), Protvino, Russia European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. Gys European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Hadjivasiliou Syracuse University, Syracuse, NY United States
G. Haefeli Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
C. Haen European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. C. Haines Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
S. Hall Imperial College London, London, United Kingdom
T. Hampson H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
S. Hansmann-Menzemer Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
N. Harnew Department of Physics, University of Oxford, Oxford, United Kingdom
S. T. Harnew H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
J. Harrison School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
T. Hartmann Institut für Physik, Universität Rostock, Rostock, Germany
J. He European Organization for Nuclear Research (CERN), Geneva, Switzerland
V. Heijne Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
K. Hennessy Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
P. Henrard CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
J. A. Hernando Morata Universidad de Santiago de Compostela, Santiago de Compostela, Spain
E. van Herwijnen European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Hicheur Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
E. Hicks Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
D. Hill Department of Physics, University of Oxford, Oxford, United Kingdom
M. Hoballah CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
C. Hombach School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
P. Hopchev LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
W. Hulsbergen Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
P. Hunt Department of Physics, University of Oxford, Oxford, United Kingdom
T. Huse Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
N. Hussain Department of Physics, University of Oxford, Oxford, United Kingdom
D. Hutchcroft Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
D. Hynds School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
V. Iakovenko Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine
M. Idzik Faculty of Physics and Applied Computer Science, AGH - University of Science and Technology, Kraków, Poland
P. Ilten School of Physics, University College Dublin, Dublin, Ireland
R. Jacobsson European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Jaeger Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
E. Jans Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
P. Jaton Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
F. Jing Center for High Energy Physics, Tsinghua University, Beijing, China
M. John Department of Physics, University of Oxford, Oxford, United Kingdom
D. Johnson Department of Physics, University of Oxford, Oxford, United Kingdom
C. R. Jones Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
C. Joram European Organization for Nuclear Research (CERN), Geneva, Switzerland
B. Jost European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Kaballo Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
S. Kandybei NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
M. Karacson European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. M. Karbach European Organization for Nuclear Research (CERN), Geneva, Switzerland
I. R. Kenyon University of Birmingham, Birmingham, United Kingdom
U. Kerzel European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. Ketel Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
A. Keune Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
B. Khanji Sezione INFN di Milano Bicocca, Milano, Italy
O. Kochebina LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
I. Komarov Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
R. F. Koopman Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
P. Koppenburg Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
M. Korolev Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
A. Kozlinskiy Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
L. Kravchuk Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia
K. Kreplin Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Kreps Department of Physics, University of Warwick, Coventry, United Kingdom
G. Krocker Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
P. Krokovny Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
F. Kruse Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Kucharczyk Sezione INFN di Milano Bicocca, Milano, Italy Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
V. Kudryavtsev Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
T. Kvaratskheliya Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia European Organization for Nuclear Research (CERN), Geneva, Switzerland
V. N. La Thi Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
D. Lacarrere European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. Lafferty School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
A. Lai Sezione INFN di Cagliari, Cagliari, Italy
D. Lambert School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
R. W. Lambert Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
E. Lanciotti European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. Lanfranchi Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Langenbruch European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. Latham Department of Physics, University of Warwick, Coventry, United Kingdom
C. Lazzeroni University of Birmingham, Birmingham, United Kingdom
R. Le Gac CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
J. van Leerdam Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
J.-P. Lees LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
R. Lefèvre CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
A. Leflat Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
J. Lefrançois LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
S. Leo Sezione INFN di Pisa, Pisa, Italy
O. Leroy CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
T. Lesiak Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
B. Leverington Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
Y. Li Center for High Energy Physics, Tsinghua University, Beijing, China
L. Li Gioi CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
M. Liles Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
R. Lindner European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Linn Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
B. Liu Center for High Energy Physics, Tsinghua University, Beijing, China
G. Liu European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Lohn European Organization for Nuclear Research (CERN), Geneva, Switzerland
I. Longstaff School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
J. H. Lopes Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
E. Lopez Asamar Universitat de Barcelona, Barcelona, Spain
N. Lopez-March Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
H. Lu Center for High Energy Physics, Tsinghua University, Beijing, China
D. Lucchesi Sezione INFN di Padova, Padova, Italy
J. Luisier Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
H. Luo School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
F. Machefert LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
I. V. Machikhiliyan LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
F. Maciuc Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
O. Maev Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Malde Department of Physics, University of Oxford, Oxford, United Kingdom
G. Manca Sezione INFN di Cagliari, Cagliari, Italy
G. Mancinelli CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
U. Marconi Sezione INFN di Bologna, Bologna, Italy
R. Märki Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
J. Marks Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
G. Martellotti Sezione INFN di Roma La Sapienza, Roma, Italy
A. Martens LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
A. Martín Sánchez LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
M. Martinelli Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
D. Martinez Santos Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
D. Martins Tostes Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
A. Martynov Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
A. Massafferri Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
R. Matev European Organization for Nuclear Research (CERN), Geneva, Switzerland
Z. Mathe European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Matteuzzi Sezione INFN di Milano Bicocca, Milano, Italy
E. Maurice CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
A. Mazurov Sezione INFN di Ferrara, Ferrara, Italy Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. McCarthy University of Birmingham, Birmingham, United Kingdom
A. McNab School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
R. McNulty School of Physics, University College Dublin, Dublin, Ireland
B. Meadows Department of Physics, University of Oxford, Oxford, United Kingdom University of Cincinnati, Cincinnati, OH United States
F. Meier Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Meissner Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Merk Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
D. A. Milanes LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
M.-N. Minard LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
J. Molina Rodriguez Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
S. Monteil CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
D. Moran School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
P. Morawski Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
M. J. Morello Sezione INFN di Pisa, Pisa, Italy
R. Mountain Syracuse University, Syracuse, NY United States
I. Mous Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
F. Muheim School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
K. Müller Physik-Institut, Universität Zürich, Zürich, Switzerland
R. Muresan Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
B. Muryn Faculty of Physics and Applied Computer Science, AGH - University of Science and Technology, Kraków, Poland
B. Muster Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
P. Naik H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
T. Nakada Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
R. Nandakumar STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
I. Nasteva Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
M. Needham School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
N. Neufeld European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. D. Nguyen Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
T. D. Nguyen Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
C. Nguyen-Mau Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. Nicol LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
V. Niess CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
R. Niet Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
N. Nikitin Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
T. Nikodem Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
A. Nomerotski Department of Physics, University of Oxford, Oxford, United Kingdom
A. Novoselov Institute for High Energy Physics (IHEP), Protvino, Russia
A. Oblakowska-Mucha Faculty of Physics and Applied Computer Science, AGH - University of Science and Technology, Kraków, Poland
V. Obraztsov Institute for High Energy Physics (IHEP), Protvino, Russia
S. Oggero Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
S. Ogilvy School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
O. Okhrimenko Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine
R. Oldeman Sezione INFN di Cagliari, Cagliari, Italy
M. Orlandea Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
J. M. Otalora Goicochea Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
P. Owen Imperial College London, London, United Kingdom
A. Oyanguren Universitat de Barcelona, Barcelona, Spain
B. K. Pal Syracuse University, Syracuse, NY United States
A. Palano Sezione INFN di Bari, Bari, Italy
M. Palutan Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
J. Panman European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Papanestis STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
M. Pappagallo School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
C. Parkes School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
C. J. Parkinson Imperial College London, London, United Kingdom
G. Passaleva Sezione INFN di Firenze, Firenze, Italy
G. D. Patel Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
M. Patel Imperial College London, London, United Kingdom
G. N. Patrick STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
C. Patrignani Sezione INFN di Genova, Genova, Italy
C. Pavel-Nicorescu Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
A. Pazos Alvarez Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Pellegrino Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
G. Penso Sezione INFN di Roma La Sapienza, Roma, Italy
M. Pepe Altarelli European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Perazzini Sezione INFN di Bologna, Bologna, Italy
D. L. Perego Sezione INFN di Milano Bicocca, Milano, Italy
E. Perez Trigo Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Pérez-Calero Yzquierdo Universitat de Barcelona, Barcelona, Spain
P. Perret CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
M. Perrin-Terrin CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
K. Petridis Imperial College London, London, United Kingdom
A. Petrolini Sezione INFN di Genova, Genova, Italy
A. Phan Syracuse University, Syracuse, NY United States
E. Picatoste Olloqui Universitat de Barcelona, Barcelona, Spain
B. Pietrzyk LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
T. Pilař Department of Physics, University of Warwick, Coventry, United Kingdom
D. Pinci Sezione INFN di Roma La Sapienza, Roma, Italy
S. Playfer School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
M. Plo Casasus Universidad de Santiago de Compostela, Santiago de Compostela, Spain
F. Polci LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
G. Polok Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
A. Poluektov Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia Department of Physics, University of Warwick, Coventry, United Kingdom
E. Polycarpo Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
D. Popov Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
B. Popovici Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
C. Potterat Universitat de Barcelona, Barcelona, Spain
A. Powell Department of Physics, University of Oxford, Oxford, United Kingdom
J. Prisciandaro Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
A. Pritchard Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
C. Prouve LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
V. Pugatch Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine
A. Puig Navarro Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
G. Punzi Sezione INFN di Pisa, Pisa, Italy
W. Qian LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
J. H. Rademacker H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
B. Rakotomiaramanana Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. S. Rangel Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
I. Raniuk NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
N. Rauschmayr European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. Raven Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
S. Redford Department of Physics, University of Oxford, Oxford, United Kingdom
M. M. Reid Department of Physics, University of Warwick, Coventry, United Kingdom
A. C. dos Reis Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
S. Ricciardi STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
A. Richards Imperial College London, London, United Kingdom
K. Rinnert Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
V. Rives Molina Universitat de Barcelona, Barcelona, Spain
D. A. Roa Romero CNRS/IN2P3, LPC, Clermont Université, Université Blaise Pascal, Clermont-Ferrand, France
P. Robbe LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
E. Rodrigues School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
P. Rodriguez Perez Universidad de Santiago de Compostela, Santiago de Compostela, Spain
S. Roiser European Organization for Nuclear Research (CERN), Geneva, Switzerland
V. Romanovsky Institute for High Energy Physics (IHEP), Protvino, Russia
A. Romero Vidal Universidad de Santiago de Compostela, Santiago de Compostela, Spain
J. Rouvinet Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
T. Ruf European Organization for Nuclear Research (CERN), Geneva, Switzerland
F. Ruffini Sezione INFN di Pisa, Pisa, Italy
H. Ruiz Universitat de Barcelona, Barcelona, Spain
P. Ruiz Valls Universitat de Barcelona, Barcelona, Spain
G. Sabatino Sezione INFN di Roma La Sapienza, Roma, Italy
J. J. Saborido Silva Universidad de Santiago de Compostela, Santiago de Compostela, Spain
N. Sagidova Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
P. Sail School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
B. Saitta Sezione INFN di Cagliari, Cagliari, Italy
C. Salzmann Physik-Institut, Universität Zürich, Zürich, Switzerland
B. Sanmartin Sedes Universidad de Santiago de Compostela, Santiago de Compostela, Spain
M. Sannino Sezione INFN di Genova, Genova, Italy
R. Santacesaria Sezione INFN di Roma La Sapienza, Roma, Italy
C. Santamarina Rios Universidad de Santiago de Compostela, Santiago de Compostela, Spain
E. Santovetti Sezione INFN di Roma Tor Vergata, Roma, Italy
M. Sapunov CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
A. Sarti Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
C. Satriano Sezione INFN di Roma La Sapienza, Roma, Italy
A. Satta Sezione INFN di Roma Tor Vergata, Roma, Italy
M. Savrie Sezione INFN di Ferrara, Ferrara, Italy
D. Savrina Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
P. Schaack Imperial College London, London, United Kingdom
M. Schiller Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
H. Schindler European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Schlupp Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Schmelling Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
B. Schmidt European Organization for Nuclear Research (CERN), Geneva, Switzerland
O. Schneider Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
A. Schopper European Organization for Nuclear Research (CERN), Geneva, Switzerland
M.-H. Schune LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
R. Schwemmer European Organization for Nuclear Research (CERN), Geneva, Switzerland
B. Sciascia Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
A. Sciubba Sezione INFN di Roma La Sapienza, Roma, Italy
M. Seco Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Semennikov Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
K. Senderowska Faculty of Physics and Applied Computer Science, AGH - University of Science and Technology, Kraków, Poland
I. Sepp Imperial College London, London, United Kingdom
N. Serra Physik-Institut, Universität Zürich, Zürich, Switzerland
J. Serrano CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
P. Seyfert Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Shapkin Institute for High Energy Physics (IHEP), Protvino, Russia
I. Shapoval Sezione INFN di Ferrara, Ferrara, Italy NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
P. Shatalov Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
Y. Shcheglov Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
T. Shears European Organization for Nuclear Research (CERN), Geneva, Switzerland Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
L. Shekhtman Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
O. Shevchenko NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
V. Shevchenko Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
A. Shires Imperial College London, London, United Kingdom
R. Silva Coutinho Department of Physics, University of Warwick, Coventry, United Kingdom
T. Skwarnicki Syracuse University, Syracuse, NY United States
N. A. Smith Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
E. Smith STFC Rutherford Appleton Laboratory, Didcot, United Kingdom Department of Physics, University of Oxford, Oxford, United Kingdom
M. Smith School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
M. D. Sokoloff University of Cincinnati, Cincinnati, OH United States
F. J. P. Soler School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
F. Soomro Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
D. Souza H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
B. Souza De Paula Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
B. Spaan Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
A. Sparkes School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
P. Spradlin School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
F. Stagni European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Stahl Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
O. Steinkamp Physik-Institut, Universität Zürich, Zürich, Switzerland
S. Stoica Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
S. Stone Syracuse University, Syracuse, NY United States
B. Storaci Physik-Institut, Universität Zürich, Zürich, Switzerland
M. Straticiuc Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
U. Straumann Physik-Institut, Universität Zürich, Zürich, Switzerland
V. K. Subbiah European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Swientek Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
V. Syropoulos Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
M. Szczekowski National Center for Nuclear Research (NCBJ), Warsaw, Poland
P. Szczypka European Organization for Nuclear Research (CERN), Geneva, Switzerland Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
T. Szumlak Faculty of Physics and Applied Computer Science, AGH - University of Science and Technology, Kraków, Poland
S. T’Jampens LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
M. Teklishyn LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
E. Teodorescu Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
F. Teubert European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Thomas Department of Physics, University of Oxford, Oxford, United Kingdom
E. Thomas European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. van Tilburg Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
V. Tisserand LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
M. Tobin Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
S. Tolk Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
D. Tonelli European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Topp-Joergensen Department of Physics, University of Oxford, Oxford, United Kingdom
N. Torr Department of Physics, University of Oxford, Oxford, United Kingdom
E. Tournefier LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France Imperial College London, London, United Kingdom
S. Tourneur Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. T. Tran Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. Tresch Physik-Institut, Universität Zürich, Zürich, Switzerland
A. Tsaregorodtsev CNRS/IN2P3, CPPM, Aix-Marseille Université, Marseille, France
P. Tsopelas Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
N. Tuning Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
M. Ubeda Garcia European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Ukleja National Center for Nuclear Research (NCBJ), Warsaw, Poland
D. Urner School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
U. Uwer Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
V. Vagnoni Sezione INFN di Bologna, Bologna, Italy
G. Valenti Sezione INFN di Bologna, Bologna, Italy
R. Vazquez Gomez Universitat de Barcelona, Barcelona, Spain
P. Vazquez Regueiro Universidad de Santiago de Compostela, Santiago de Compostela, Spain
S. Vecchi Sezione INFN di Ferrara, Ferrara, Italy
J. J. Velthuis H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
M. Veltri Sezione INFN di Firenze, Firenze, Italy
G. Veneziano Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. Vesterinen European Organization for Nuclear Research (CERN), Geneva, Switzerland
B. Viaud LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
D. Vieira Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
X. Vilasis-Cardona Universitat de Barcelona, Barcelona, Spain
A. Vollhardt Physik-Institut, Universität Zürich, Zürich, Switzerland
D. Volyanskyy Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
D. Voong H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
A. Vorobyev Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
V. Vorobyev Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
C. Voß Institut für Physik, Universität Rostock, Rostock, Germany
H. Voss Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
R. Waldi Institut für Physik, Universität Rostock, Rostock, Germany
R. Wallace School of Physics, University College Dublin, Dublin, Ireland
S. Wandernoth Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
J. Wang Syracuse University, Syracuse, NY United States
D. R. Ward Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
N. K. Watson University of Birmingham, Birmingham, United Kingdom
A. D. Webber School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
D. Websdale Imperial College London, London, United Kingdom
M. Whitehead Department of Physics, University of Warwick, Coventry, United Kingdom
J. Wicht European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. Wiechczynski Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
D. Wiedner Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
L. Wiggers Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
G. Wilkinson Department of Physics, University of Oxford, Oxford, United Kingdom
M. P. Williams Department of Physics, University of Warwick, Coventry, United Kingdom STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
M. Williams Massachusetts Institute of Technology, Cambridge, MA United States
F. F. Wilson STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
J. Wishahi Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Witek Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
S. A. Wotton Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
S. Wright Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
S. Wu Center for High Energy Physics, Tsinghua University, Beijing, China
K. Wyllie European Organization for Nuclear Research (CERN), Geneva, Switzerland
Y. Xie European Organization for Nuclear Research (CERN), Geneva, Switzerland School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
Z. Xing Syracuse University, Syracuse, NY United States
Z. Yang Center for High Energy Physics, Tsinghua University, Beijing, China
R. Young School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
X. Yuan Center for High Energy Physics, Tsinghua University, Beijing, China
O. Yushchenko Institute for High Energy Physics (IHEP), Protvino, Russia
M. Zangoli Sezione INFN di Bologna, Bologna, Italy
M. Zavertyaev Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
F. Zhang Center for High Energy Physics, Tsinghua University, Beijing, China
L. Zhang Syracuse University, Syracuse, NY United States
W. C. Zhang School of Physics, University College Dublin, Dublin, Ireland
Y. Zhang Center for High Energy Physics, Tsinghua University, Beijing, China
A. Zhelezov Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
A. Zhokhov Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
L. Zhong Center for High Energy Physics, Tsinghua University, Beijing, China
A. Zvyagin European Organization for Nuclear Research (CERN), Geneva, Switzerland

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Measurement of form-factor-independent observables in the decay B0→K(*0)μ(+)μ(-)

We present a measurement of form-factor-independent angular observables in the decay B(0)→K*(892)(0)μ(+)μ(-). The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb(-1), collected by the LHCb experiment in pp collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared q² in the range 0.1<q²<19.0 GeV²/c(4). Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one q² bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%.

Observation of the decay B(c)(+) → B(s)(0)π+

The result of a search for the decay B(c)(+) → B(s)(0) π+ is presented, using the B(s)(0) → D(s)(-)π+ and B(s)(0) → J/ψ Ø channels. The analysis is based on a data sample of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 1 fb(-1) taken at a center-of-mass energy of 7 TeV, and 2 fb(-1) taken at 8 TeV. The decay B(c)(+) → B(s)(0)π+ is observed with significance in excess of 5 standard deviations independently in both decay channels. The measured product of the ratio of cross sections and branching fraction is [σ(B(c)(+))/σ(B(s)(0))] × B(B(c)(+)→ B(s)(0)π+) = [2.37 ± 0.31 (stat)± 0.11 (syst)(-0.13)(+0.17)(τ(B)(c)(+)))] × 10(-3), in the pseudorapidity range 2<η(B)<5, where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the B(c)(+) lifetime. This is the first observation of a B meson decaying to another B meson via the weak interaction.

Measurement of the CP asymmetry in B(+)→K(+)μ(+)μ(-) decays

A measurement of the CP asymmetry in B(+)→K(+)μ(+)μ(-) decays is presented using pp collision data, corresponding to an integrated luminosity of 1.0 fb(-1), recorded by the LHCb experiment during 2011 at a center-of-mass energy of 7 TeV. The measurement is performed in seven bins of μ(+)μ(-) invariant mass squared in the range 0.05<q2<22.00 GeV2/c4, excluding the J/ψ and ψ(2S) resonance regions. Production and detection asymmetries are corrected for using the B(+)→J/ψK(+) decay as a control mode. Averaged over all the bins, the CP asymmetry is found to be A(CP)=0.000±0.033 (stat)±0.005 (syst)±0.007 (J/ψK), where the third uncertainty is due to the CP asymmetry of the control mode. This is consistent with the standard model prediction.

Search for the lepton-flavor-violating decays B(s)0→e(±)μ(∓) and B0→e(±)μ(∓)

A search for the lepton-flavor-violating decays B(s)0→e(±)μ(∓) and B0→e(±)μ(∓) is performed with a data sample, corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions at √s=7 TeV, collected by the LHCb experiment. The observed number of B(s)0→e(±)μ(∓) and B0→e(±)μ(∓) candidates is consistent with background expectations. Upper limits on the branching fractions of both decays are determined to be B(B(s)0→e(±)μ(∓))<1.1(1.4)×10(-8) and B(B0→e(±)μ(∓))<2.8(3.7)×10(-9) at 90% (95%) confidence level (C.L.). These limits are a factor of 20 lower than those set by previous experiments. Lower bounds on the Pati-Salam leptoquark masses are also calculated, M(LQ)(B(s)0→e(±)μ(∓))>101 TeV/c(2) and M(LQ)(B0→e(±)μ(∓))>126 TeV/c(2) at 95% C.L., and are a factor of 2 higher than the previous bounds.

Observation of a resonance in B+ → K+ μ+ μ- decays at low recoil

A broad peaking structure is observed in the dimuon spectrum of B+ → K+ μ+ μ- decays in the kinematic region where the kaon has a low recoil against the dimuon system. The structure is consistent with interference between the B+ → K+ μ+ μ- decay and a resonance and has a statistical significance exceeding six standard deviations. The mean and width of the resonance are measured to be 4191(-8)(+9)  MeV/c2 and 65(-16)(+22)  MeV/c2, respectively, where the uncertainties include statistical and systematic contributions. These measurements are compatible with the properties of the ψ(4160) meson. First observations of both the decay B+ → ψ(4160)K+ and the subsequent decay ψ(4160) → μ+ μ- are reported. The resonant decay and the interference contribution make up 20% of the yield for dimuon masses above 3770  MeV/c2. This contribution is larger than theoretical estimates.

Precision measurement of the Λb(0) baryon lifetime

The ratio of the Λb(0) baryon lifetime to that of the B(0) meson is measured using 1.0  fb(-1) of integrated luminosity in 7 TeV center-of-mass energy pp collisions at the LHC. The Λb(0) baryon is observed for the first time in the decay mode Λb(0)→J/ψpK-, while the B(0) meson decay used is the well known B(0)→J/ψπ+ K- mode, where the π+ K- mass is consistent with that of the K(*0)(892) meson. The ratio of lifetimes is measured to be 0.976±0.012±0.006, in agreement with theoretical expectations based on the heavy quark expansion. Using previous determinations of the B(0) meson lifetime, the Λb(0) lifetime is found to be 1.482±0.018±0.012  ps. In both cases, the first uncertainty is statistical and the second systematic.

Measurement of CP violation in the phase space of B±→K± π+ π- and B±→K± K+ K- decays

The charmless decays B±→K± π+ π- and B±→K± K+ K- are reconstructed using data, corresponding to an integrated luminosity of 1.0  fb(-1), collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as ACP(B±→K± π+ π-)=0.032±0.008 (stat)±0.004 (syst)±0.007(J/ψK±) and ACP(B±→K± K+ K-)=-0.043±0.009 (stat)±0.003 (syst)±0.007(J/ψK±), where the third uncertainty is due to the CP asymmetry of the B±→J/ψK± reference mode. The significance of ACP(B±→K± K+ K-) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three-body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

Measurement of the Bs(0)→μ+ μ- branching fraction and search for B(0)→μ+ μ- decays at the LHCb experiment

A search for the rare decays Bs(0)→μ+ μ- and B(0)→μ+ μ- is performed at the LHCb experiment. The data analyzed correspond to an integrated luminosity of 1  fb(-1) of pp collisions at a center-of-mass energy of 7 TeV and 2  fb(-1) at 8 TeV. An excess of Bs(0)→μ+ μ- signal candidates with respect to the background expectation is seen with a significance of 4.0 standard deviations. A time-integrated branching fraction of B(Bs(0)→μ+ μ-)=(2.9(-1.0)(+1.1))×10(-9) is obtained and an upper limit of B(B(0)→μ+ μ-)<7.4×10(-10) at 95% confidence level is set. These results are consistent with the standard model expectations.

First measurement of the CP-violating phase in Bs(0) → ϕϕ decays

A first flavor-tagged measurement of the time-dependent CP-violating asymmetry in B(s)(0) → ϕϕ decays is presented. In this decay channel, the CP-violating weak phase arises due to CP violation in the interference between B(s)(0)-B(s)(0) mixing and the b → sss gluonic penguin decay amplitude. Using a sample of pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected at a center-of-mass energy of 7 TeV with the LHCb detector, 880 B(s)(0) → ϕϕ signal decays are obtained. The CP-violating phase is measured to be in the interval [-2.46,-0.76] rad at a 68% confidence level. The p value of the standard model prediction is 16%.

Measurements of the branching fractions of [Formula: see text] decays

The branching fractions of the decay [Formula: see text] for different intermediate states are measured using data, corresponding to an integrated luminosity of 1.0 fb^-1, collected by the LHCb experiment. The total branching fraction, its charmless component [Formula: see text] and the branching fractions via the resonant [Formula: see text] states η_c (1S) and ψ(2S) relative to the decay via a J/ψ intermediate state are [Formula: see text] Upper limits on the B⁺ branching fractions into the η_c (2S) meson and into the charmonium-like states X(3872) and X(3915) are also obtained.

First observation of CP violation in the decays of B(s)0 mesons

Using pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measurement of direct CP violation in B(s)(0)→K(-)π(+) decays, A(CP)(B(s)(0)→K(-)π(+)=0.27±0.04 (stat)±0.01 (syst), with significance exceeding 5 standard deviations. This is the first observation of CP violation in the decays of B(s)(0) mesons. Furthermore, we provide an improved determination of direct CP violation in B(0)→K(+)π(-) decays, A(CP)(B(0)→K(+)π(-)=-0.080±0.007 (stat)±0.003 (syst), which is the most precise measurement of this quantity to date.

Determination of the X(3872) meson quantum numbers

The quantum numbers of the X(3872) meson are determined to be J(PC)=1(++) based on angular correlations in B(+)→X(3872)K(+) decays, where X(3872)→π(+)π(-)J/ψ and J/ψ→μ(+)μ(-). The data correspond to 1.0 fb(-1) of pp collisions collected by the LHCb detector. The only alternative assignment allowed by previous measurements J(PC)=2(-+) is rejected with a confidence level equivalent to more than 8 Gaussian standard deviations using a likelihood-ratio test in the full angular phase space. This result favors exotic explanations of the X(3872) state.

Search for rare B(0)((s))→μ(+)μ(-)μ(+)μ(-) decays

A search for the decays B(0)((s))→μ(+)μ(-)μ(+)μ(-) and B(0)→μ(+)μ(-)μ(+)μ(-) is performed using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected with the LHCb detector in 2011. The number of candidates observed is consistent with the expected background and, assuming phase-space models of the decays, limits on the branching fractions are set: B(B(s)(0)→μ(+)μ(-)μ(+)μ(-))<1.6(1.2)×10(-8) and B(B(0)→μ(+)μ(-)μ(+)μ(-))<6.6(5.3)×10(-9) at 95% (90%) confidence level. In addition, limits are set in the context of a supersymmetric model which allows for the B((s))(0) meson to decay into a scalar (S) and pseudoscalar particle (P), where S and P have masses of 2.5 GeV/c and 214.3 MeV/c, respectively, both resonances decay into μ(+)μ(-). The branching fraction limits for these decays are B(B(s)(0)→SP)<1.6(1.2)×10(-8) and B(B(0)→SP)<6.3(5.1)×10(-9) at 95% (90%) confidence level.

Measurement of the forward energy flow in pp collisions at [Formula: see text]

The energy flow created in pp collisions at [Formula: see text] is studied within the pseudorapidity range 1.9<η<4.9 with data collected by the LHCb experiment. The measurements are performed for inclusive minimum-bias interactions, hard scattering processes and events with an enhanced or suppressed diffractive contribution. The results are compared to predictions given by Pythia-based and cosmic-ray event generators, which provide different models of soft hadronic interactions.

Measurement of the Λ(b)(0), Ξ (b)(-), and Ω(b((-) Baryon masses

Bottom baryons decaying to a J/ψ meson and a hyperon are reconstructed using 1.0 fb(-1) of data collected in 2011 with the LHCb detector. Significant Λ(b)(0) → J/ψΛ, Ξ(b((-) → J/ψΞ(-) and Ω(b)(-) → J/ψΩ(-) signals are observed and the corresponding masses are measured to be M(Λ(b)(0))=5619.53 ± 0.13(stat.) ± 0.45(syst.) MeV/c(2), M(Ξ(b)(-)) = 5795.8 ± 0.9(stat.) ± 0.4(syst.) MeV/c(2), M(Ω(b)(-)) = 6046.0 ± 2.2(stat.) ± 0.5(syst.) MeV/c(2) , while the differences with respect to the Λ(b)(0) mass are M(Ξ(b)(-))-M(Λ(b)(0))=176.2 ± 0.9(stat.) ± 0.1(syst.) MeV/c(2), M(Ω(b)(-))-M(Λ(b)(0))=426.4 ± 2.2(stat.) ± 0.4(syst.) MeV/c(2). These are the most precise mass measurements of the Λ(b)(0), Ξ(b)(-) and Ω(b)(-) baryons to date. Averaging the above Λ(b)(0) mass measurement with that published by LHCb using 35 pb(-1) of data collected in 2010 yields M(Λ(b)(0)) = 5619.44 ± 0.13(stat.)± 0.38(syst.) MeV/c(2).

First observation of the decay Bs2*(5840)(0)→B*+ K- and studies of excited Bs(0) mesons

The properties of the orbitally excited (L=1) Bs(0) states are studied by using 1.0  fb(-1) of pp collisions at sqrt[s]=7  TeV collected with the LHCb detector. The first observation of the Bs2*(5840)(0) meson decaying to B*+ K- is reported, and the corresponding branching fraction measured relative to the B+ K- decay mode. The Bs1(5830)(0)→B*+ K- decay is observed as well. The width of the Bs2*(5840)(0) state is measured for the first time, and the masses of the two states are determined with the highest precision to date. The observation of the Bs2*(5840)(0)→B*+ K- decay favors the spin-parity assignment J(P)=2+ for the Bs2*(5840)(0) meson. In addition, the most precise measurement of the mass difference m(B*+)-m(B+)=45.01±0.30(stat)±0.23(syst)  MeV/c(2) is obtained.

Observation of D0-D0 oscillations

We report a measurement of the time-dependent ratio of D(0) → K(+) π- to D(0) → K(-) π(+) decay rates in D(*+)-tagged events using 1.0 fb(-1) of integrated luminosity recorded by the LHCb experiment. We measure the mixing parameters x('2) = (-0.9 ± 1.3) × 10(-4), y' = (7.2 ± 2.4) × 10(-3), and the ratio of doubly-Cabibbo-suppressed to Cabibbo-favored decay rates R(D) = (3.52 ± 0.15) × 10^{-3}, where the uncertainties include statistical and systematic sources. The result excludes the no-mixing hypothesis with a probability corresponding to 9.1 standard deviations and represents the first observation of D0-D0 oscillations from a single measurement.

Measurement of the CP asymmetry in B(0)→K(*0)μ(+)μ(-) decays

A measurement of the CP asymmetry in B(0)→K(*0)μ(+)μ(-) decays is presented, based on 1.0 fb(-1) of pp collision data recorded by the LHCb experiment during 2011. The measurement is performed in six bins of invariant mass squared of the μ(+)μ(-) pair, excluding the J/ψ and ψ(2S) resonance regions. Production and detection asymmetries are removed using the B(0)→J/ψK(*0) decay as a control mode. The integrated CP asymmetry is found to be -0.072±0.040(stat)±0.005(syst), consistent with the standard model.

First evidence for the decay B(s)(0)→μ+ μ-

A search for the rare decays B(s)(0)→μ+ μ- and B(0)→μ+ μ- is performed with data collected in 2011 and 2012 with the LHCb experiment at the Large Hadron Collider. The data samples comprise 1.1  fb(-1) of proton-proton collisions at sqrt[s]=8  TeV and 1.0  fb(-1) at sqrt[s]=7  TeV. We observe an excess of B(s)(0)→μ+ μ- candidates with respect to the background expectation. The probability that the background could produce such an excess or larger is 5.3×10(-4) corresponding to a signal significance of 3.5 standard deviations. A maximum-likelihood fit gives a branching fraction of B(B(s)(0)→μ+ μ-)=(3.2(-1.2)(+1.5))×10(-9), where the statistical uncertainty is 95% of the total uncertainty. This result is in agreement with the standard model expectation. The observed number of B(0)→μ+ μ- candidates is consistent with the background expectation, giving an upper limit of B(B(0)→μ+ μ-)<9.4×10(-10) at 95% confidence level.

Measurements of B(c)+ production and mass with the B(c)+ → J/ψπ+ decay

Measurements of B(c)(+) production and mass are performed with the decay mode B(c)(+)→J/ψπ(+) using 0.37 fb(-1) of data collected in pp collisions at √[s]=7 TeV by the LHCb experiment. The ratio of the production cross section times branching fraction between the B(c)(+)→J/ψπ(+) and the B(+)→J/ψK(+) decays is measured to be (0.68±0.10(stat)±0.03(syst)±0.05(lifetime))% for B(c)(+) and B(+) mesons with transverse momenta p(T)>4 GeV/c and pseudorapidities 2.5<η<4.5. The B(c)(+) mass is directly measured to be 6273.7±1.3(stat)±1.6(syst) MeV/c(2), and the measured mass difference with respect to the B(+) meson is M(B(c)(+))-M(B(+))=994.6±1.3(stat)±0.6(syst) MeV/c(2).

Observation of excited Λ(b)(0) baryons

Using pp collision data corresponding to 1.0 fb(-1) integrated luminosity collected by the LHCb detector, two narrow states are observed in the Λ(b)(0)π(+)π(-) spectrum with masses 5911.97±0.12(stat)±0.02(syst)±0.66(Λ(b)(0) mass) MeV/c(2) and 5919.77±0.08(stat)±0.02(syst)±0.66(Λ(b)(0) mass) MeV/c(2). The significances of the observations are 5.2 and 10.2 standard deviations, respectively. These states are interpreted as the orbitally excited Λ(b)(0) baryons, Λ(b)(*0)(5912) and Λ(b)(*0)(5920).

Measurement of the B¯(s)(0) effective lifetime in the J/ψf0(980) final state

The effective lifetime of the B ¯(s)(0) meson in the decay mode B¯(s)(0)→J/ψf(0)(980) is measured using 1.0 fb(-1) of data collected in pp collisions at √s=7 TeV with the LHCb detector. The result is 1.700±0.040±0.026 ps, where the first uncertainty is statistical and the second systematic. As the final state is CP-odd, and CP violation in this mode is measured to be small, the lifetime measurement can be translated into a measurement of the decay width of the heavy B¯(s)(0) mass eigenstate, Γ(H)=0.588±0.014±0.009 ps(-1).

Observation of B0→D¯(0)K(+)K(-) and evidence for B(s)(0)→D¯(0)K(+)K(-)

The first observation of the decay B0→D¯(0)K(+)K(-) is reported from an analysis of 0.62 fb(-1) of pp collision data collected with the LHCb detector. Its branching fraction is measured relative to that of the topologically similar decay B(0)→D ¯(0)π(+)π(-) to be (B(B(0)→D¯(0)K(+)K(-))/B(B(0)→D¯(0)π(+)π(-))=0.056±0.011±0.007,where the first uncertainty is statistical and the second is systematic. The significance of the signal is 5.8σ. Evidence, with 3.8σ significance, for B(s)(0)→D¯(0)K(+)K(-) decays is also presented. The relative branching fraction is measured to be B(B(s)(0)→D¯(0)K(+)K(-))/B(B(0)→D¯(0)K(+)K(-))=0.90±0.27±0.20. These channels are of interest to study the mechanisms behind hadronic B decays, and open new possibilities for CP violation analyses with larger data sets.

Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons

The relative rates of B-meson decays into J/ψ and ψ(2S) mesons are measured for the three decay modes in pp collisions recorded with the LHCb detector. The ratios of branching fractions ([Formula: see text]) are measured to be [Formula: see text] where the third uncertainty is from the ratio of the ψ(2S) and J/ψ branching fractions to μ⁺μ^-.

Measurement of ψ(2S) meson production in pp collisions at [Formula: see text]

The differential cross-section for the inclusive production of ψ(2S) mesons in pp collisions at [Formula: see text] has been measured with the LHCb detector. The data sample corresponds to an integrated luminosity of 36 pb^-1. The ψ(2S) mesons are reconstructed in the decay channels ψ(2S)→μ⁺μ^- and ψ(2S)→J/ψπ⁺π^-, with the J/ψ meson decaying into two muons. Results are presented both for promptly produced ψ(2S) mesons and for those originating from b-hadron decays. In the kinematic range p_T(ψ(2S))≤16 GeV/c and 2<y(ψ(2S))≤4.5 we measure [Formula: see text] where the last uncertainty on the prompt cross-section is due to the unknown ψ(2S) polarization. Recent QCD calculations are found to be in good agreement with our measurements. Combining the present result with the LHCb J/ψ measurements we determine the inclusive branching fraction [Formula: see text] where the last uncertainty is due to the [Formula: see text], [Formula: see text] and [Formula: see text] branching fraction uncertainties.

First observation of the decay B(c)+ → J/ψπ(+) π- π+

The decay B(c)(+) → J/ψπ(+) π(-) π(+) is observed for the first time, using 0.8 fb(-1) of pp collisions at sqrt[s] = 7 TeV collected by the LHCb experiment. The ratio of branching fractions B(B(c)(+) → J/ψπ(+) π(-) π(+))/B(B(c)(+)→J/ψπ^{+}) is measured to be 2.41 ± 0.30 ± 0.33, where the first uncertainty is statistical and the second is systematic. The result is in agreement with theoretical predictions.

Determination of the sign of the decay width difference in the B(s)(0) system

The interference between the K+ K- S-wave and P-wave amplitudes in B(s)(0) → J/ψK+ K- decays with the K+ K- pairs in the region around the ϕ(1020) resonance is used to determine the variation of the difference of the strong phase between these amplitudes as a function of K+ K- invariant mass. Combined with the results from our CP asymmetry measurement in B(s)(0) → J/ψϕ decays, we conclude that the B(s)(0) mass eigenstate that is almost CP = +1 is lighter and decays faster than the mass eigenstate that is almost CP = -1. This determines the sign of the decay width difference ΔΓ(s) ≡ Γ(L) - Γ(H) to be positive. Our result also resolves the ambiguity in the past measurements of the CP violating phase ϕ(s) to be close to zero rather than π. These conclusions are in agreement with the standard model expectations.

Strong constraints on the rare decays B(s)(0) → μ+ μ- and B0 → μ+ μ-

A search for B(s)(0) → μ+ μ- and B0 → μ+ μ decays is performed using 1.0  fb(-1) of pp collision data collected at sqrt[s] = 7  TeV with the LHCb experiment at the Large Hadron Collider. For both decays, the number of observed events is consistent with expectation from background and standard model signal predictions. Upper limits on the branching fractions are determined to be B(B(s)(0) → μ+ μ-) < 4.5(3.8)×10(-9) and B(B0 → μ+ μ-) < 1.0(0.81)×10(-9) at 95% (90%) confidence level.

Opposite-side flavour tagging of B mesons at the LHCb experiment

The calibration and performance of the opposite-side flavour tagging algorithms used for the measurements of time-dependent asymmetries at the LHCb experiment are described. The algorithms have been developed using simulated events and optimized and calibrated with B⁺→J/ψK⁺, B⁰→J/ψK^∗0 and B⁰→D^∗-μ⁺ν_μ decay modes with 0.37 fb^-1 of data collected in pp collisions at [Formula: see text] during the 2011 physics run. The opposite-side tagging power is determined in the B⁺→J/ψK⁺ channel to be (2.10±0.08±0.24) %, where the first uncertainty is statistical and the second is systematic.

Measurement of production in collisions at [Formula: see text]

The production of ϒ(1S), ϒ(2S) and ϒ(3S) mesons in proton-proton collisions at the centre-of-mass energy of [Formula: see text] is studied with the LHCb detector. The analysis is based on a data sample of 25 pb-1 collected at the Large Hadron Collider. The ϒ mesons are reconstructed in the decay mode ϒ→μ+μ- and the signal yields are extracted from a fit to the μ+μ- invariant mass distributions. The differential production cross-sections times dimuon branching fractions are measured as a function of the ϒ transverse momentum pT and rapidity y, over the range pT <15 GeV/c and 2.0 Collapse

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Affiliation(s)

The LHCb Collaboration />CERN, 1211 Geneva 23, Switzerland
R. Aaij />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
C. Abellan Beteta />Universitat de Barcelona, Barcelona, Spain
B. Adeva />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
M. Adinolfi />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
C. Adrover />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
A. Affolder />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
Z. Ajaltouni />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
J. Albrecht />European Organization for Nuclear Research (CERN), Geneva, Switzerland
F. Alessio />European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Alexander />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
G. Alkhazov />Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
P. Alvarez Cartelle />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. A. Alves />Sezione INFN di Roma La Sapienza, Roma, Italy
S. Amato />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
Y. Amhis />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
J. Anderson />Physik-Institut, Universität Zürich, Zürich, Switzerland
R. B. Appleby />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
O. Aquines Gutierrez />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
F. Archilli />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy />European Organization for Nuclear Research (CERN), Geneva, Switzerland
L. Arrabito />CC-IN2P3, CNRS/IN2P3, Lyon-Villeurbanne, France
A. Artamonov />Institute for High Energy Physics (IHEP), Protvino, Russia
M. Artuso />European Organization for Nuclear Research (CERN), Geneva, Switzerland />Syracuse University, Syracuse, NY United States
E. Aslanides />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
G. Auriemma />Sezione INFN di Roma La Sapienza, Roma, Italy
S. Bachmann />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
J. J. Back />Department of Physics, University of Warwick, Coventry, United Kingdom
D. S. Bailey />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
V. Balagura />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia />European Organization for Nuclear Research (CERN), Geneva, Switzerland
W. Baldini />Sezione INFN di Ferrara, Ferrara, Italy
R. J. Barlow />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
C. Barschel />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Barsuk />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
W. Barter />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
A. Bates />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
C. Bauer />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
Th. Bauer />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
A. Bay />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
I. Bediaga />Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
S. Belogurov />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
K. Belous />Institute for High Energy Physics (IHEP), Protvino, Russia
I. Belyaev />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
E. Ben-Haim />LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
M. Benayoun />LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
G. Bencivenni />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
S. Benson />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
J. Benton />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
R. Bernet />Physik-Institut, Universität Zürich, Zürich, Switzerland
M.-O. Bettler />Sezione INFN di Firenze, Firenze, Italy
M. van Beuzekom />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
A. Bien />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
S. Bifani />School of Physics, University College Dublin, Dublin, Ireland
T. Bird />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
A. Bizzeti />Sezione INFN di Firenze, Firenze, Italy
P. M. Bjørnstad />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
T. Blake />European Organization for Nuclear Research (CERN), Geneva, Switzerland
F. Blanc />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
C. Blanks />Imperial College London, London, United Kingdom
J. Blouw />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
S. Blusk />Syracuse University, Syracuse, NY United States
A. Bobrov />Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
V. Bocci />Sezione INFN di Roma La Sapienza, Roma, Italy
A. Bondar />Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
N. Bondar />Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
W. Bonivento />Sezione INFN di Cagliari, Cagliari, Italy
S. Borghi />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
A. Borgia />Syracuse University, Syracuse, NY United States
T. J. V. Bowcock />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
C. Bozzi />Sezione INFN di Ferrara, Ferrara, Italy
T. Brambach />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
J. van den Brand />Nikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, The Netherlands
J. Bressieux />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
D. Brett />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
M. Britsch />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
T. Britton />Syracuse University, Syracuse, NY United States
N. H. Brook />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
H. Brown />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
K. de Bruyn />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
A. Büchler-Germann />Physik-Institut, Universität Zürich, Zürich, Switzerland
I. Burducea />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
A. Bursche />Physik-Institut, Universität Zürich, Zürich, Switzerland
J. Buytaert />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Cadeddu />Sezione INFN di Cagliari, Cagliari, Italy
O. Callot />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
M. Calvi />Sezione INFN di Milano Bicocca, Milano, Italy
M. Calvo Gomez />Universitat de Barcelona, Barcelona, Spain
A. Camboni />Universitat de Barcelona, Barcelona, Spain
P. Campana />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Carbone />Sezione INFN di Bologna, Bologna, Italy
G. Carboni />Sezione INFN di Roma Tor Vergata, Roma, Italy
R. Cardinale />Sezione INFN di Genova, Genova, Italy />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Cardini />Sezione INFN di Cagliari, Cagliari, Italy
L. Carson />Imperial College London, London, United Kingdom
K. Carvalho Akiba />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
G. Casse />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
M. Cattaneo />European Organization for Nuclear Research (CERN), Geneva, Switzerland
Ch. Cauet />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Charles />Department of Physics, University of Oxford, Oxford, United Kingdom
Ph. Charpentier />European Organization for Nuclear Research (CERN), Geneva, Switzerland
N. Chiapolini />Physik-Institut, Universität Zürich, Zürich, Switzerland
K. Ciba />European Organization for Nuclear Research (CERN), Geneva, Switzerland
X. Cid Vidal />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
G. Ciezarek />Imperial College London, London, United Kingdom
P. E. L. Clarke />European Organization for Nuclear Research (CERN), Geneva, Switzerland />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
M. Clemencic />European Organization for Nuclear Research (CERN), Geneva, Switzerland
H. V. Cliff />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
J. Closier />European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Coca />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
V. Coco />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
J. Cogan />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
P. Collins />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Comerma-Montells />Universitat de Barcelona, Barcelona, Spain
F. Constantin />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
A. Contu />Department of Physics, University of Oxford, Oxford, United Kingdom
A. Cook />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
M. Coombes />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
G. Corti />European Organization for Nuclear Research (CERN), Geneva, Switzerland
B. Couturier />European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. A. Cowan />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
R. Currie />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
C. D’Ambrosio />European Organization for Nuclear Research (CERN), Geneva, Switzerland
P. David />LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
P. N. Y. David />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
I. De Bonis />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
S. De Capua />Sezione INFN di Roma Tor Vergata, Roma, Italy
M. De Cian />Physik-Institut, Universität Zürich, Zürich, Switzerland
F. De Lorenzi />School of Physics, University College Dublin, Dublin, Ireland
J. M. De Miranda />Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
L. De Paula />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
P. De Simone />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
D. Decamp />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
M. Deckenhoff />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
H. Degaudenzi />European Organization for Nuclear Research (CERN), Geneva, Switzerland />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
L. Del Buono />LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
C. Deplano />Sezione INFN di Cagliari, Cagliari, Italy
D. Derkach />Sezione INFN di Bologna, Bologna, Italy />European Organization for Nuclear Research (CERN), Geneva, Switzerland
O. Deschamps />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
F. Dettori />Nikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, The Netherlands
J. Dickens />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
H. Dijkstra />European Organization for Nuclear Research (CERN), Geneva, Switzerland
P. Diniz Batista />Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
F. Domingo Bonal />Universitat de Barcelona, Barcelona, Spain
S. Donleavy />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
F. Dordei />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
A. Dosil Suárez />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
D. Dossett />Department of Physics, University of Warwick, Coventry, United Kingdom
A. Dovbnya />NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
F. Dupertuis />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
R. Dzhelyadin />Institute for High Energy Physics (IHEP), Protvino, Russia
A. Dziurda />Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
S. Easo />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
U. Egede />Imperial College London, London, United Kingdom
V. Egorychev />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
S. Eidelman />Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
D. van Eijk />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
F. Eisele />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
S. Eisenhardt />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
R. Ekelhof />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
L. Eklund />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
Ch. Elsasser />Physik-Institut, Universität Zürich, Zürich, Switzerland
D. Elsby />University of Birmingham, Birmingham, United Kingdom
D. Esperante Pereira />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Falabella />Sezione INFN di Bologna, Bologna, Italy />Sezione INFN di Ferrara, Ferrara, Italy
E. Fanchini />Sezione INFN di Milano Bicocca, Milano, Italy
C. Färber />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
G. Fardell />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
C. Farinelli />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
S. Farry />School of Physics, University College Dublin, Dublin, Ireland
V. Fave />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
V. Fernandez Albor />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
M. Ferro-Luzzi />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Filippov />Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia
C. Fitzpatrick />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
M. Fontana />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
F. Fontanelli />Sezione INFN di Genova, Genova, Italy
R. Forty />European Organization for Nuclear Research (CERN), Geneva, Switzerland
O. Francisco />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
M. Frank />European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Frei />European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Frosini />Sezione INFN di Firenze, Firenze, Italy
S. Furcas />Sezione INFN di Milano Bicocca, Milano, Italy
A. Gallas Torreira />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
D. Galli />Sezione INFN di Bologna, Bologna, Italy
M. Gandelman />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
P. Gandini />Department of Physics, University of Oxford, Oxford, United Kingdom
Y. Gao />Center for High Energy Physics, Tsinghua University, Beijing, China
J-C. Garnier />European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. Garofoli />Syracuse University, Syracuse, NY United States
J. Garra Tico />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
L. Garrido />Universitat de Barcelona, Barcelona, Spain
D. Gascon />Universitat de Barcelona, Barcelona, Spain
C. Gaspar />European Organization for Nuclear Research (CERN), Geneva, Switzerland
R. Gauld />Department of Physics, University of Oxford, Oxford, United Kingdom
N. Gauvin />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. Gersabeck />European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. Gershon />European Organization for Nuclear Research (CERN), Geneva, Switzerland />Department of Physics, University of Warwick, Coventry, United Kingdom
Ph. Ghez />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
V. Gibson />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
V. V. Gligorov />European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Göbel />Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
D. Golubkov />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
A. Golutvin />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia />European Organization for Nuclear Research (CERN), Geneva, Switzerland />Imperial College London, London, United Kingdom
A. Gomes />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
H. Gordon />Department of Physics, University of Oxford, Oxford, United Kingdom
M. Grabalosa Gándara />Universitat de Barcelona, Barcelona, Spain
R. Graciani Diaz />Universitat de Barcelona, Barcelona, Spain
L. A. Granado Cardoso />European Organization for Nuclear Research (CERN), Geneva, Switzerland
E. Graugés />Universitat de Barcelona, Barcelona, Spain
G. Graziani />Sezione INFN di Firenze, Firenze, Italy
A. Grecu />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
E. Greening />Department of Physics, University of Oxford, Oxford, United Kingdom
S. Gregson />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
B. Gui />Syracuse University, Syracuse, NY United States
E. Gushchin />Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia
Yu. Guz />Institute for High Energy Physics (IHEP), Protvino, Russia
T. Gys />European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Hadjivasiliou />Syracuse University, Syracuse, NY United States
G. Haefeli />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
C. Haen />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. C. Haines />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
T. Hampson />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
S. Hansmann-Menzemer />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
R. Harji />Imperial College London, London, United Kingdom
N. Harnew />Department of Physics, University of Oxford, Oxford, United Kingdom
J. Harrison />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
P. F. Harrison />Department of Physics, University of Warwick, Coventry, United Kingdom
T. Hartmann />Physikalisches Institut, Universität Rostock, Rostock, Germany
J. He />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
V. Heijne />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
K. Hennessy />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
P. Henrard />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
J. A. Hernando Morata />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
E. van Herwijnen />European Organization for Nuclear Research (CERN), Geneva, Switzerland
E. Hicks />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
K. Holubyev />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
P. Hopchev />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
W. Hulsbergen />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
P. Hunt />Department of Physics, University of Oxford, Oxford, United Kingdom
T. Huse />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
R. S. Huston />School of Physics, University College Dublin, Dublin, Ireland
D. Hutchcroft />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
D. Hynds />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
V. Iakovenko />Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine
P. Ilten />School of Physics, University College Dublin, Dublin, Ireland
J. Imong />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
R. Jacobsson />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Jaeger />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Jahjah Hussein />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
E. Jans />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
F. Jansen />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
P. Jaton />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
B. Jean-Marie />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
F. Jing />Center for High Energy Physics, Tsinghua University, Beijing, China
M. John />Department of Physics, University of Oxford, Oxford, United Kingdom
D. Johnson />Department of Physics, University of Oxford, Oxford, United Kingdom
C. R. Jones />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
B. Jost />European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Kaballo />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
S. Kandybei />NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
M. Karacson />European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. M. Karbach />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
J. Keaveney />School of Physics, University College Dublin, Dublin, Ireland
I. R. Kenyon />University of Birmingham, Birmingham, United Kingdom
U. Kerzel />European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. Ketel />Nikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, The Netherlands
A. Keune />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
B. Khanji />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
Y. M. Kim />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
M. Knecht />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
R. F. Koopman />Nikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, The Netherlands
P. Koppenburg />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
M. Korolev />Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
A. Kozlinskiy />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
L. Kravchuk />Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia
K. Kreplin />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Kreps />Department of Physics, University of Warwick, Coventry, United Kingdom
G. Krocker />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
P. Krokovny />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
F. Kruse />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
K. Kruzelecki />European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Kucharczyk />Sezione INFN di Milano Bicocca, Milano, Italy />Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland />European Organization for Nuclear Research (CERN), Geneva, Switzerland
T. Kvaratskheliya />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia />European Organization for Nuclear Research (CERN), Geneva, Switzerland
V. N. La Thi />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
D. Lacarrere />European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. Lafferty />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
A. Lai />Sezione INFN di Cagliari, Cagliari, Italy
D. Lambert />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
R. W. Lambert />Nikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, The Netherlands
E. Lanciotti />European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. Lanfranchi />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
C. Langenbruch />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
T. Latham />Department of Physics, University of Warwick, Coventry, United Kingdom
C. Lazzeroni />University of Birmingham, Birmingham, United Kingdom
R. Le Gac />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
J. van Leerdam />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
J.-P. Lees />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
R. Lefèvre />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
A. Leflat />Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia />European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. Lefrançois />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
O. Leroy />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
T. Lesiak />Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
L. Li />Center for High Energy Physics, Tsinghua University, Beijing, China
L. Li Gioi />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
M. Lieng />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Liles />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
R. Lindner />European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Linn />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
B. Liu />Center for High Energy Physics, Tsinghua University, Beijing, China
G. Liu />European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. von Loeben />Sezione INFN di Milano Bicocca, Milano, Italy
J. H. Lopes />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
E. Lopez Asamar />Universitat de Barcelona, Barcelona, Spain
N. Lopez-March />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
H. Lu />Center for High Energy Physics, Tsinghua University, Beijing, China
J. Luisier />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
A. Mac Raighne />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
F. Machefert />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
I. V. Machikhiliyan />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
F. Maciuc />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
O. Maev />Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia />European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. Magnin />Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
S. Malde />Department of Physics, University of Oxford, Oxford, United Kingdom
R. M. D. Mamunur />European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. Manca />Sezione INFN di Cagliari, Cagliari, Italy
G. Mancinelli />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
N. Mangiafave />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
U. Marconi />Sezione INFN di Bologna, Bologna, Italy
R. Märki />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
J. Marks />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
G. Martellotti />Sezione INFN di Roma La Sapienza, Roma, Italy
A. Martens />LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
L. Martin />Department of Physics, University of Oxford, Oxford, United Kingdom
A. Martín Sánchez />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
D. Martinez Santos />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Massafferri />Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
Z. Mathe />School of Physics, University College Dublin, Dublin, Ireland
C. Matteuzzi />Sezione INFN di Milano Bicocca, Milano, Italy
M. Matveev />Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
E. Maurice />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
B. Maynard />Syracuse University, Syracuse, NY United States
A. Mazurov />Sezione INFN di Ferrara, Ferrara, Italy />Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia />European Organization for Nuclear Research (CERN), Geneva, Switzerland
G. McGregor />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
R. McNulty />School of Physics, University College Dublin, Dublin, Ireland
M. Meissner />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Merk />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
J. Merkel />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
R. Messi />Sezione INFN di Roma Tor Vergata, Roma, Italy
S. Miglioranzi />European Organization for Nuclear Research (CERN), Geneva, Switzerland
D. A. Milanes />Sezione INFN di Bari, Bari, Italy
M.-N. Minard />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
J. Molina Rodriguez />Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
S. Monteil />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
D. Moran />School of Physics, University College Dublin, Dublin, Ireland
P. Morawski />Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
R. Mountain />Syracuse University, Syracuse, NY United States
I. Mous />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
F. Muheim />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
K. Müller />Physik-Institut, Universität Zürich, Zürich, Switzerland
R. Muresan />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
B. Muryn />AGH University of Science and Technology, Kraków, Poland
B. Muster />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. Musy />Universitat de Barcelona, Barcelona, Spain
J. Mylroie-Smith />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
P. Naik />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
T. Nakada />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
R. Nandakumar />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
I. Nasteva />Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
M. Nedos />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Needham />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
N. Neufeld />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. D. Nguyen />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
C. Nguyen-Mau />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. Nicol />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
V. Niess />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
N. Nikitin />Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
A. Nomerotski />European Organization for Nuclear Research (CERN), Geneva, Switzerland />Department of Physics, University of Oxford, Oxford, United Kingdom
A. Novoselov />Institute for High Energy Physics (IHEP), Protvino, Russia
A. Oblakowska-Mucha />AGH University of Science and Technology, Kraków, Poland
V. Obraztsov />Institute for High Energy Physics (IHEP), Protvino, Russia
S. Oggero />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
S. Ogilvy />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
O. Okhrimenko />Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine
R. Oldeman />Sezione INFN di Cagliari, Cagliari, Italy />European Organization for Nuclear Research (CERN), Geneva, Switzerland
M. Orlandea />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
J. M. Otalora Goicochea />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
P. Owen />Imperial College London, London, United Kingdom
K. Pal />Syracuse University, Syracuse, NY United States
J. Palacios />Physik-Institut, Universität Zürich, Zürich, Switzerland
A. Palano />Sezione INFN di Bari, Bari, Italy
M. Palutan />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
J. Panman />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Papanestis />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
M. Pappagallo />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
C. Parkes />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
C. J. Parkinson />Imperial College London, London, United Kingdom
G. Passaleva />Sezione INFN di Firenze, Firenze, Italy
G. D. Patel />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
M. Patel />Imperial College London, London, United Kingdom
S. K. Paterson />Imperial College London, London, United Kingdom
G. N. Patrick />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
C. Patrignani />Sezione INFN di Genova, Genova, Italy
C. Pavel-Nicorescu />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
A. Pazos Alvarez />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Pellegrino />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
G. Penso />Sezione INFN di Roma La Sapienza, Roma, Italy
M. Pepe Altarelli />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Perazzini />Sezione INFN di Bologna, Bologna, Italy
D. L. Perego />Sezione INFN di Milano Bicocca, Milano, Italy
E. Perez Trigo />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Pérez-Calero Yzquierdo />Universitat de Barcelona, Barcelona, Spain
P. Perret />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
M. Perrin-Terrin />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
G. Pessina />Sezione INFN di Milano Bicocca, Milano, Italy
A. Petrella />Sezione INFN di Ferrara, Ferrara, Italy />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Petrolini />Sezione INFN di Genova, Genova, Italy
A. Phan />Syracuse University, Syracuse, NY United States
E. Picatoste Olloqui />Universitat de Barcelona, Barcelona, Spain
B. Pie Valls />Universitat de Barcelona, Barcelona, Spain
B. Pietrzyk />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
T. Pilař />Department of Physics, University of Warwick, Coventry, United Kingdom
D. Pinci />Sezione INFN di Roma La Sapienza, Roma, Italy
R. Plackett />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
S. Playfer />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
M. Plo Casasus />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
G. Polok />Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
A. Poluektov />Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia />Department of Physics, University of Warwick, Coventry, United Kingdom
E. Polycarpo />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
D. Popov />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
B. Popovici />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
C. Potterat />Universitat de Barcelona, Barcelona, Spain
A. Powell />Department of Physics, University of Oxford, Oxford, United Kingdom
J. Prisciandaro />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
V. Pugatch />Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine
A. Puig Navarro />Universitat de Barcelona, Barcelona, Spain
W. Qian />Syracuse University, Syracuse, NY United States
J. H. Rademacker />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
B. Rakotomiaramanana />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. S. Rangel />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
I. Raniuk />NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
G. Raven />Nikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, The Netherlands
S. Redford />Department of Physics, University of Oxford, Oxford, United Kingdom
M. M. Reid />Department of Physics, University of Warwick, Coventry, United Kingdom
A. C. dos Reis />Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
S. Ricciardi />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
A. Richards />Imperial College London, London, United Kingdom
K. Rinnert />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
D. A. Roa Romero />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
P. Robbe />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
E. Rodrigues />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
F. Rodrigues />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
P. Rodriguez Perez />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
G. J. Rogers />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
S. Roiser />European Organization for Nuclear Research (CERN), Geneva, Switzerland
V. Romanovsky />Institute for High Energy Physics (IHEP), Protvino, Russia
M. Rosello />Universitat de Barcelona, Barcelona, Spain
J. Rouvinet />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
T. Ruf />European Organization for Nuclear Research (CERN), Geneva, Switzerland
H. Ruiz />Universitat de Barcelona, Barcelona, Spain
G. Sabatino />Sezione INFN di Roma Tor Vergata, Roma, Italy
J. J. Saborido Silva />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
N. Sagidova />Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
P. Sail />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
B. Saitta />Sezione INFN di Cagliari, Cagliari, Italy
C. Salzmann />Physik-Institut, Universität Zürich, Zürich, Switzerland
M. Sannino />Sezione INFN di Genova, Genova, Italy
R. Santacesaria />Sezione INFN di Roma La Sapienza, Roma, Italy
C. Santamarina Rios />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
R. Santinelli />European Organization for Nuclear Research (CERN), Geneva, Switzerland
E. Santovetti />Sezione INFN di Roma Tor Vergata, Roma, Italy
M. Sapunov />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
A. Sarti />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
C. Satriano />Sezione INFN di Roma La Sapienza, Roma, Italy
A. Satta />Sezione INFN di Roma Tor Vergata, Roma, Italy
M. Savrie />Sezione INFN di Ferrara, Ferrara, Italy
D. Savrina />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
P. Schaack />Imperial College London, London, United Kingdom
M. Schiller />Nikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, The Netherlands
S. Schleich />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Schlupp />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Schmelling />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
B. Schmidt />European Organization for Nuclear Research (CERN), Geneva, Switzerland
O. Schneider />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
A. Schopper />European Organization for Nuclear Research (CERN), Geneva, Switzerland
M.-H. Schune />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
R. Schwemmer />European Organization for Nuclear Research (CERN), Geneva, Switzerland
B. Sciascia />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
A. Sciubba />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
M. Seco />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Semennikov />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
K. Senderowska />AGH University of Science and Technology, Kraków, Poland
I. Sepp />Imperial College London, London, United Kingdom
N. Serra />Physik-Institut, Universität Zürich, Zürich, Switzerland
J. Serrano />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
P. Seyfert />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
M. Shapkin />Institute for High Energy Physics (IHEP), Protvino, Russia
I. Shapoval />European Organization for Nuclear Research (CERN), Geneva, Switzerland />NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
P. Shatalov />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
Y. Shcheglov />Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
T. Shears />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
L. Shekhtman />Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
O. Shevchenko />NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
V. Shevchenko />Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
A. Shires />Imperial College London, London, United Kingdom
R. Silva Coutinho />Department of Physics, University of Warwick, Coventry, United Kingdom
T. Skwarnicki />Syracuse University, Syracuse, NY United States
N. A. Smith />Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
E. Smith />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom />Department of Physics, University of Oxford, Oxford, United Kingdom
K. Sobczak />Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
F. J. P. Soler />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
A. Solomin />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
F. Soomro />Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy />European Organization for Nuclear Research (CERN), Geneva, Switzerland
B. Souza De Paula />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
B. Spaan />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
A. Sparkes />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
P. Spradlin />School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
F. Stagni />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Stahl />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
O. Steinkamp />Physik-Institut, Universität Zürich, Zürich, Switzerland
S. Stoica />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
S. Stone />European Organization for Nuclear Research (CERN), Geneva, Switzerland />Syracuse University, Syracuse, NY United States
B. Storaci />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
M. Straticiuc />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
U. Straumann />Physik-Institut, Universität Zürich, Zürich, Switzerland
V. K. Subbiah />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. Swientek />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Szczekowski />Soltan Institute for Nuclear Studies, Warsaw, Poland
P. Szczypka />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
T. Szumlak />AGH University of Science and Technology, Kraków, Poland
S. T’Jampens />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
E. Teodorescu />Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
F. Teubert />European Organization for Nuclear Research (CERN), Geneva, Switzerland
C. Thomas />Department of Physics, University of Oxford, Oxford, United Kingdom
E. Thomas />European Organization for Nuclear Research (CERN), Geneva, Switzerland
J. van Tilburg />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
V. Tisserand />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
M. Tobin />Physik-Institut, Universität Zürich, Zürich, Switzerland
S. Topp-Joergensen />Department of Physics, University of Oxford, Oxford, United Kingdom
N. Torr />Department of Physics, University of Oxford, Oxford, United Kingdom
E. Tournefier />LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France />Imperial College London, London, United Kingdom
S. Tourneur />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
M. T. Tran />Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
A. Tsaregorodtsev />CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
N. Tuning />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
M. Ubeda Garcia />European Organization for Nuclear Research (CERN), Geneva, Switzerland
A. Ukleja />Soltan Institute for Nuclear Studies, Warsaw, Poland
P. Urquijo />Syracuse University, Syracuse, NY United States
U. Uwer />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
V. Vagnoni />Sezione INFN di Bologna, Bologna, Italy
G. Valenti />Sezione INFN di Bologna, Bologna, Italy
R. Vazquez Gomez />Universitat de Barcelona, Barcelona, Spain
P. Vazquez Regueiro />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
S. Vecchi />Sezione INFN di Ferrara, Ferrara, Italy
J. J. Velthuis />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
M. Veltri />Sezione INFN di Firenze, Firenze, Italy
B. Viaud />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
I. Videau />LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
D. Vieira />Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
X. Vilasis-Cardona />Universitat de Barcelona, Barcelona, Spain
J. Visniakov />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
A. Vollhardt />Physik-Institut, Universität Zürich, Zürich, Switzerland
D. Volyanskyy />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
D. Voong />H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
A. Vorobyev />Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
H. Voss />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
S. Wandernoth />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
J. Wang />Syracuse University, Syracuse, NY United States
D. R. Ward />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
N. K. Watson />University of Birmingham, Birmingham, United Kingdom
A. D. Webber />School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
D. Websdale />Imperial College London, London, United Kingdom
M. Whitehead />Department of Physics, University of Warwick, Coventry, United Kingdom
D. Wiedner />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
L. Wiggers />Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
G. Wilkinson />Department of Physics, University of Oxford, Oxford, United Kingdom
M. P. Williams />Department of Physics, University of Warwick, Coventry, United Kingdom />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
M. Williams />Imperial College London, London, United Kingdom
F. F. Wilson />STFC Rutherford Appleton Laboratory, Didcot, United Kingdom
J. Wishahi />Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany
M. Witek />Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
W. Witzeling />European Organization for Nuclear Research (CERN), Geneva, Switzerland
S. A. Wotton />Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
K. Wyllie />European Organization for Nuclear Research (CERN), Geneva, Switzerland
Y. Xie />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
F. Xing />Department of Physics, University of Oxford, Oxford, United Kingdom
Z. Xing />Syracuse University, Syracuse, NY United States
Z. Yang />Center for High Energy Physics, Tsinghua University, Beijing, China
R. Young />School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
O. Yushchenko />Institute for High Energy Physics (IHEP), Protvino, Russia
M. Zangoli />Sezione INFN di Bologna, Bologna, Italy
M. Zavertyaev />Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
F. Zhang />Center for High Energy Physics, Tsinghua University, Beijing, China
L. Zhang />Syracuse University, Syracuse, NY United States
W. C. Zhang />School of Physics, University College Dublin, Dublin, Ireland
Y. Zhang />Center for High Energy Physics, Tsinghua University, Beijing, China
A. Zhelezov />Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
L. Zhong />Center for High Energy Physics, Tsinghua University, Beijing, China
A. Zvyagin />European Organization for Nuclear Research (CERN), Geneva, Switzerland

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First evidence of direct CP violation in charmless two-body decays of Bs0 mesons

Using a data sample corresponding to an integrated luminosity of 0.35  fb-1 collected by LHCb in 2011, we report the first evidence of CP violation in the decays of Bs0} mesons to K±π∓ pairs, ACP(Bs0→Kπ)=0.27±0.08(stat)±0.02(syst), with a significance of 3.3σ. Furthermore, we report the most precise measurement of CP violation in the decays of B0 mesons to K±π∓ pairs, ACP(B0→Kπ)=-0.088±0.011(stat)±0.008(syst), with a significance exceeding 6σ.

Differential branching fraction and angular analysis of the decay B0 → K*0 μ+ μ-

The angular distributions and the partial branching fraction of the decay B0 → K*0 μ+ μ- are studied by using an integrated luminosity of 0.37  fb(-1) of data collected with the LHCb detector. The forward-backward asymmetry of the muons, A(FB), the fraction of longitudinal polarization, F(L), and the partial branching fraction dB/dq2 are determined as a function of the dimuon invariant mass. The measurements are in good agreement with the standard model predictions and are the most precise to date. In the dimuon invariant mass squared range 1.00-6.00  GeV2/c4, the results are A(FB)=-0.06(-0.14)(+0.13)±0.04, F(L)=0.55±0.10±0.03, and dB/dq2=(0.42±0.06±0.03)×10(-7)  c4/GeV2. In each case, the first error is statistical and the second systematic.

First observation of the decays B(0) → D(+)K(-)π(+)π(-) and B(-) → D(0)K(-)π(+)π(-)

First observations of the Cabibbo-suppressed decays B(0) → D(+)K(-)π(+)π(-) and B(-) → D(0)K(-)π(+)π(-) are reported using 35 pb(-1) of data collected with the LHCb detector. Their branching fractions are measured with respect to the corresponding Cabibbo-favored decays, from which we obtain B(B(0) → D(+)K(-)π(+)π(-))/B(B(0) → D(+)π(-)π(+)π(-))=(5.9±1.1±0.5)×10(-2) and B(B(-) → D(0)K(-)π(+)π(-))/B(B(-) → D(0)π(-)π(+)π(-))=(9.4±1.3±0.9)×10(-2), where the uncertainties are statistical and systematic, respectively. The B(-) → D(0)K(-)π(+)π(-) decay is particularly interesting, as it can be used in a similar way to B(-) → D(0)K(-) to measure the Cabibbo-Kobayashi-Maskawa phase γ.

Observation of B(s)(0) → J/ψf(2)'(1525) in J/ψK+ K- final states

The decay B(s)(0) → J/ψK+ K- is investigated using 0.16  fb(-1) of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψϕ channel is well known, final states at higher K+ K- masses have not previously been studied. In the K+ K- mass spectrum we observe a significant signal in the f(2)'(1525) region as well as a nonresonant component. After subtracting the nonresonant component, we find B(B(s)(0) → J/ψf(2)'(1525))/B(B(s)(0) → J/ψϕ) = (26.4 ± 2.7 ± 2.4)%.

Evidence for CP violation in time-integrated D0→h(-)h(+) decay rates

A search for time-integrated CP violation in D(0)→h(-)h(+) (h=K, π) decays is presented using 0.62 fb(-1) of data collected by LHCb in 2011. The flavor of the charm meson is determined by the charge of the slow pion in the D(*+)→D(0)π(+) and D(*-)→D[over ¯](0)π(-) decay chains. The difference in CP asymmetry between D(0)→K(-)K(+) and D(0)→π(-)π(+), ΔA(CP)≡A(CP)(K(-)K(+))-A(CP)(π(-)π(+)), is measured to be [-0.82±0.21(stat)±0.11(syst)]%. This differs from the hypothesis of CP conservation by 3.5 standard deviations.

Search for lepton number violating decays B+ → π- μ+ μ+ and B+ → K- μ+ μ+

A search is performed for the lepton number violating decay B+ → h- μ+ μ+, where h- represents a K- or a π-, using an integrated luminosity of 36  pb(-1) of data collected with the LHCb detector. The decay is forbidden in the standard model but allowed in models with a Majorana neutrino. No signal is observed in either channel and limits of B(B+ → K- μ+ μ+) < 5.4×10(-8) and B(B+ → π- μ+ μ+) < 5.8×10(-8) are set at the 95% confidence level. These improve the previous best limits by factors of 40 and 30, respectively.

Measurement of the CP-violating phase ϕ(s) in the decay B(s)(0) → J/ψϕ

We present a measurement of the time-dependent CP-violating asymmetry in B(s)(0) → J/ψϕ decays, using data collected with the LHCb detector at the LHC. The decay time distribution of B(s)(0) → J/ψϕ is characterized by the decay widths Γ(H) and Γ(L) of the heavy and light mass eigenstates, respectively, of the B(s)(0) - B(s)(0) system and by a CP-violating phase ϕ(s). In a sample of about 8500 B(s)(0) → J/ψϕ events isolated from 0.37  fb(-1) of pp collisions at sqrt[s] = 7  TeV, we measure ϕ(s) = 0.15 ± 0.18(stat) ± 0.06(syst)  rad. We also find an average B(s)(0) decay width Γ(s) ≡ (Γ(L) + Γ(H))/2 = 0.657 ± 0.009(stat) ± 0.008(syst)  ps(-1) and a decay width difference ΔΓ(s) ≡ Γ(L) - Γ(H) = 0.123 ± 0.029(stat) ± 0.011(syst)  ps(-1). Our measurement is insensitive to the transformation (ϕ(s),ΔΓ(s)) ↦ (π - ϕ(s), -ΔΓ(s)).

Determination of f(s)/f(d) for 7 TeV pp collisions and measurement of the B0→D-K+ branching fraction

The relative abundance of the three decay modes B(0)→D(-)K(+), B(0)→D(-)π(+), and B(s)(0)→D(s)(-)π(+) produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb(-1). The branching fraction of B(0)→D(-)K(+) is found to be B(B(0)→D(-)K(+)) = (2.01 ± 0.18(stat) ± 0.14(syst)) × 10(-4). The ratio of fragmentation fractions f(s)/f(d) is determined through the relative abundance of B(s)(0)→D(s)(-)π(+) to B(0)→D(-)K(+) and B(0)→D(-)π(+), leading to f(s)/f(d) = 0.253 ± 0.017 ± 0.017 ± 0.020, where the uncertainties are statistical, systematic, and theoretical, respectively.