1
|
Adlarson P, Augustyniak W, Bardan W, Bashkanov M, Bergmann FS, Berłowski M, Bondar A, Büscher M, Calén H, Ciepał I, Clement H, Czerwiński E, Demmich K, Engels R, Erven A, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goswami A, Grigoryev K, Heijkenskjöld L, Hejny V, Hüsken N, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khoukaz A, Khreptak O, Kirillov DA, Kistryn S, Kleines H, Kłos B, Krzemień W, Kulessa P, Kupść A, Lalwani K, Lersch D, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Morsch HP, Moskal P, Ohm H, Parol W, Perez Del Rio E, Piskunov NM, Prasuhn D, Pszczel D, Pysz K, Ritman J, Roy A, Rudy Z, Rundel O, Sawant S, Schadmand S, Schätti-Ozerianska I, Sefzick T, Serdyuk V, Shwartz B, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Stephan E, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Trzciński A, Wolke M, Wrońska A, Wüstner P, Yamamoto A, Zabierowski J, Zieliński MJ, Złomańczuk J, Żuprański P, Żurek M. Isotensor Dibaryon in the pp→ppπ^{+}π^{-} Reaction? Phys Rev Lett 2018; 121:052001. [PMID: 30118290 DOI: 10.1103/physrevlett.121.052001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/19/2018] [Indexed: 06/08/2023]
Abstract
Exclusive measurements of the quasifree pp→ppπ^{+}π^{-} reaction have been carried out at WASA@COSY by means of pd collisions at T_{p}=1.2 GeV. Total and differential cross sections have been extracted covering the energy region T_{p}=1.08-1.36 GeV, which is the region of N^{*}(1440) and Δ(1232)Δ(1232) resonance excitations. Calculations describing these excitations by t-channel meson exchange are at variance with the measured differential cross sections and underpredict substantially the experimental total cross section. An isotensor ΔN dibaryon resonance with I(J^{P})=2(1^{+}) produced associatedly with a pion is able to overcome these deficiencies.
Collapse
Affiliation(s)
- P Adlarson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - W Augustyniak
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - W Bardan
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - M Bashkanov
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
| | - F S Bergmann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - M Berłowski
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - A Bondar
- Budker Institute of Nuclear Physics of SB RAS, 11 Akademika Lavrentieva Prospekt, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Ulitsa, Novosibirsk 630090, Russia
| | - M Büscher
- Peter Grünberg Institut, PGI-6 Elektronische Eigenschaften, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institut für Laser- und Plasmaphysik, Heinrich Heine Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - H Calén
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - I Ciepał
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - H Clement
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - E Czerwiński
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - K Demmich
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Erven
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Eyrich
- Physikalisches Institut, Friedrich-Alexander Universität Erlangen-Nürnberg, Erwin-Rommel-Straße 1, 91058 Erlangen, Germany
| | - P Fedorets
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Theoretical and Experimental Physics, named by A.I. Alikhanov of National Research Centre "Kurchatov Institute," 25 Bolshaya Cheremushkinskaya Ulitsa, Moscow 117218, Russia
| | - K Föhl
- II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - K Fransson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Goswami
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Discipline of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore, Madhya Pradesh 453 552, India
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Division, Petersburg Nuclear Physics Institute, named by B.P. Konstantinov of National Research Centre "Kurchatov Institute," 1 Mikrorajon Orlova Roshcha, Leningradskaya Oblast, Gatchina 188300, Russia
| | - L Heijkenskjöld
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hüsken
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - L Jarczyk
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Johansson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Kamys
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - G Kemmerling
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - O Khreptak
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - D A Kirillov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - S Kistryn
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Kleines
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kłos
- August Chełkowski Institute of Physics, University of Silesia, Ulica 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - W Krzemień
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - P Kulessa
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - A Kupść
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - K Lalwani
- Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, Rajasthan 302 017, India
| | - D Lersch
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Magiera
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - P Marciniewski
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Mariański
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - H-P Morsch
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - P Moskal
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Ohm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Parol
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - E Perez Del Rio
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - N M Piskunov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Pszczel
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - K Pysz
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
- Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstraße 150, 44780 Bochum, Germany
| | - A Roy
- Discipline of Physics, Indian Institute of Technology Indore, Khandwa Road, Indore, Madhya Pradesh 453 552, India
| | - Z Rudy
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - O Rundel
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - S Sawant
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400 076, India
| | - S Schadmand
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Schätti-Ozerianska
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Serdyuk
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Shwartz
- Budker Institute of Nuclear Physics of SB RAS, 11 Akademika Lavrentieva Prospekt, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Ulitsa, Novosibirsk 630090, Russia
| | - T Skorodko
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center for Astro and Particle Physics, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Department of Physics, Tomsk State University, 36 Lenin Avenue, Tomsk 634050, Russia
| | - M Skurzok
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Smyrski
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - V Sopov
- Institute for Theoretical and Experimental Physics, named by A.I. Alikhanov of National Research Centre "Kurchatov Institute," 25 Bolshaya Cheremushkinskaya Ulitsa, Moscow 117218, Russia
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Stepaniak
- High Energy Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - E Stephan
- August Chełkowski Institute of Physics, University of Silesia, Ulica 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - G Sterzenbach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - A Szczurek
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Ulica Radzikowskiego 152, 31-342 Kraków, Poland
| | - A Trzciński
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - M Wolke
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - A Wrońska
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Yamamoto
- High Energy Accelerator Research Organisation KEK, Tsukuba, Ibaraki 305-0801, Japan
| | - J Zabierowski
- Astrophysics Division, National Centre for Nuclear Research, Box 447, 90-950 Łódź, Poland
| | - M J Zieliński
- Institute of Physics, Jagiellonian University, Ulica Profesora Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Złomańczuk
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - P Żuprański
- Nuclear Physics Division, National Centre for Nuclear Research, Ulica Hoza 69, 00-681 Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
2
|
Adlarson P, Augustyniak W, Bardan W, Bashkanov M, Bass SD, Bergmann FS, Berłowski M, Bondar A, Büscher M, Calén H, Ciepał I, Clement H, Czerwiński E, Demmich K, Engels R, Erven A, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goswami A, Grigoryev K, Gullström CO, Heijkenskjöld L, Hejny V, Hüsken N, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khatri G, Khoukaz A, Khreptak O, Kirillov DA, Kistryn S, Kleines H, Kłos B, Krzemień W, Kulessa P, Kupść A, Kuzmin A, Lalwani K, Lersch D, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Morsch HP, Moskal P, Ohm H, Parol W, Perez Del Rio E, Piskunov NM, Prasuhn D, Pszczel D, Pysz K, Pyszniak A, Ritman J, Roy A, Rudy Z, Rundel O, Sawant S, Schadmand S, Schätti-Ozerianska I, Sefzick T, Serdyuk V, Shwartz B, Sitterberg K, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Stephan E, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Trzciński A, Wolke M, Wrońska A, Wüstner P, Yamamoto A, Zabierowski J, Zieliński MJ, Złomańczuk J, Żuprański P, Żurek M. Spin Dependence of η Meson Production in Proton-Proton Collisions Close to Threshold. Phys Rev Lett 2018; 120:022002. [PMID: 29376676 DOI: 10.1103/physrevlett.120.022002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/03/2017] [Indexed: 06/07/2023]
Abstract
Taking advantage of the high acceptance and axial symmetry of the WASA-at-COSY detector, and the high polarization degree of the proton beam of COSY, the reaction p[over →]p→ppη has been measured close to threshold to explore the analyzing power A_{y}. The angular distribution of A_{y} is determined with the precision improved by more than 1 order of magnitude with respect to previous results, allowing a first accurate comparison with theoretical predictions. The determined analyzing power is consistent with zero for an excess energy of Q=15 MeV, signaling s-wave production with no evidence for higher partial waves. At Q=72 MeV the data reveal strong interference of Ps and Pp partial waves and cancellation of (Pp)^{2} and Ss^{*}Sd contributions. These results rule out the presently available theoretical predictions for the production mechanism of the η meson.
Collapse
Affiliation(s)
- P Adlarson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - W Bardan
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - M Bashkanov
- School of Physics and Astronomy, University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh EH9 3FD, United Kingdom
| | - S D Bass
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - F S Bergmann
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - M Berłowski
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - A Bondar
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - M Büscher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Calén
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - I Ciepał
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - H Clement
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - E Czerwiński
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - K Demmich
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Erven
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - W Erven
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - W Eyrich
- Physikalisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, 91058 Erlangen, Germany
| | - P Fedorets
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
| | - K Föhl
- II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - K Fransson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Goswami
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, Madhya Pradesh, India
| | - K Grigoryev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Division, Petersburg Nuclear Physics Institute, Orlova Rosha 2, Gatchina, Leningrad district 188300, Russia
| | - C-O Gullström
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - L Heijkenskjöld
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hüsken
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - L Jarczyk
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Johansson
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Kamys
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - G Kemmerling
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - G Khatri
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - A Khoukaz
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - O Khreptak
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - D A Kirillov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - S Kistryn
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Kleines
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - B Kłos
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - W Krzemień
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Kulessa
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Kupść
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - A Kuzmin
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - K Lalwani
- Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg Jaipur 302017, Rajasthan, India
| | - D Lersch
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Magiera
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - P Marciniewski
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - H-P Morsch
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - P Moskal
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - H Ohm
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - W Parol
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - E Perez Del Rio
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
| | - N M Piskunov
- Veksler and Baldin Laboratory of High Energiy Physics, Joint Institute for Nuclear Physics, 6 Joliot-Curie, Dubna 141980, Russia
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Pszczel
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - K Pysz
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Pyszniak
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
- Institut für Experimentalphysik I, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - A Roy
- Department of Physics, Indian Institute of Technology Indore, Khandwa Road, Simrol, Indore 453552, Madhya Pradesh, India
| | - Z Rudy
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - O Rundel
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - S Sawant
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - S Schadmand
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Schätti-Ozerianska
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Serdyuk
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Shwartz
- Budker Institute of Nuclear Physics of SB RAS, 11 akademika Lavrentieva prospect, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia
| | - K Sitterberg
- Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
| | - T Skorodko
- Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Kepler Center für Astro-und Teilchenphysik, Physikalisches Institut der Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
- Department of Physics, Tomsk State University, 36 Lenina Avenue, Tomsk 634050, Russia
| | - M Skurzok
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Smyrski
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - V Sopov
- Institute for Theoretical and Experimental Physics, State Scientific Center of the Russian Federation, Bolshaya Cheremushkinskaya 25, 117218 Moscow, Russia
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Stepaniak
- High Energy Physics Department, National Centre for Nuclear Research, ul. Hoza 69, 00-681 Warsaw, Poland
| | - E Stephan
- August Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - G Sterzenbach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME, Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, and RWTH Aachen, 52056 Aachen, Germany
| | - A Szczurek
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego St, 31-342 Kraków, Poland
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - M Wolke
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - A Wrońska
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - P Wüstner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich 52425 Jülich, Germany
| | - A Yamamoto
- High Energy Accelerator Research Organisation KEK, Tsukuba, Ibaraki 305-0801, Japan
| | - J Zabierowski
- Department of Astrophysics, National Centre for Nuclear Research, 90-950 Łódź, Poland
| | - M J Zieliński
- Institute of Physics, Jagiellonian University, prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
| | - J Złomańczuk
- Division of Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - P Żuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, ul. Hoza 69, 00-681Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
3
|
Hempelmann N, Hejny V, Pretz J, Stephenson E, Augustyniak W, Bagdasarian Z, Bai M, Barion L, Berz M, Chekmenev S, Ciullo G, Dymov S, Etzkorn FJ, Eversmann D, Gaisser M, Gebel R, Grigoryev K, Grzonka D, Guidoboni G, Hanraths T, Heberling D, Hetzel J, Hinder F, Kacharava A, Kamerdzhiev V, Keshelashvili I, Koop I, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Mchedlishvili D, Mey S, Müller F, Nass A, Nikolaev NN, Pesce A, Prasuhn D, Rathmann F, Rosenthal M, Saleev A, Schmidt V, Semertzidis Y, Shmakova V, Silenko A, Slim J, Soltner H, Stahl A, Stassen R, Stockhorst H, Ströher H, Tabidze M, Tagliente G, Talman R, Thörngren Engblom P, Trinkel F, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wrońska A, Wüstner P, Zuprański P, Żurek M. Phase Locking the Spin Precession in a Storage Ring. Phys Rev Lett 2017; 119:014801. [PMID: 28731757 DOI: 10.1103/physrevlett.119.014801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Indexed: 06/07/2023]
Abstract
This Letter reports the successful use of feedback from a spin polarization measurement to the revolution frequency of a 0.97 GeV/c bunched and polarized deuteron beam in the Cooler Synchrotron (COSY) storage ring in order to control both the precession rate (≈121 kHz) and the phase of the horizontal polarization component. Real time synchronization with a radio frequency (rf) solenoid made possible the rotation of the polarization out of the horizontal plane, yielding a demonstration of the feedback method to manipulate the polarization. In particular, the rotation rate shows a sinusoidal function of the horizontal polarization phase (relative to the rf solenoid), which was controlled to within a 1 standard deviation range of σ=0.21 rad. The minimum possible adjustment was 3.7 mHz out of a revolution frequency of 753 kHz, which changes the precession rate by 26 mrad/s. Such a capability meets a requirement for the use of storage rings to look for an intrinsic electric dipole moment of charged particles.
Collapse
Affiliation(s)
- N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - L Barion
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - F-J Etzkorn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - M Gaisser
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - T Hanraths
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - D Mchedlishvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - S Mey
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Müller
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
- Moscow Institute for Physics and Technology, 141700 Dolgoprudny, Russia
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Rosenthal
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Saleev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Samara National Research University, 443086 Samara, Russia
| | - V Schmidt
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- Zentralinstitut für Engineering, Elektronik und Analytik (ZEA-1), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | | | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - F Trinkel
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik (ZEA-2), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - M Żurek
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
4
|
Guidoboni G, Stephenson E, Andrianov S, Augustyniak W, Bagdasarian Z, Bai M, Baylac M, Bernreuther W, Bertelli S, Berz M, Böker J, Böhme C, Bsaisou J, Chekmenev S, Chiladze D, Ciullo G, Contalbrigo M, de Conto JM, Dymov S, Engels R, Esser FM, Eversmann D, Felden O, Gaisser M, Gebel R, Glückler H, Goldenbaum F, Grigoryev K, Grzonka D, Hahnraths T, Heberling D, Hejny V, Hempelmann N, Hetzel J, Hinder F, Hipple R, Hölscher D, Ivanov A, Kacharava A, Kamerdzhiev V, Kamys B, Keshelashvili I, Khoukaz A, Koop I, Krause HJ, Krewald S, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Maier R, Makino K, Mariański B, Mchedlishvili D, Meißner UG, Mey S, Morse W, Müller F, Nass A, Natour G, Nikolaev N, Nioradze M, Nowakowski K, Orlov Y, Pesce A, Prasuhn D, Pretz J, Rathmann F, Ritman J, Rosenthal M, Rudy Z, Saleev A, Sefzick T, Semertzidis Y, Senichev Y, Shmakova V, Silenko A, Simon M, Slim J, Soltner H, Stahl A, Stassen R, Statera M, Stockhorst H, Straatmann H, Ströher H, Tabidze M, Talman R, Thörngren Engblom P, Trinkel F, Trzciński A, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wilkin C, Wrońska A, Wüstner P, Zakrzewska M, Zuprański P, Zyuzin D. How to Reach a Thousand-Second in-Plane Polarization Lifetime with 0.97-GeV/c Deuterons in a Storage Ring. Phys Rev Lett 2016; 117:054801. [PMID: 27517774 DOI: 10.1103/physrevlett.117.054801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Indexed: 06/06/2023]
Abstract
We observe a deuteron beam polarization lifetime near 1000 s in the horizontal plane of a magnetic storage ring (COSY). This long spin coherence time is maintained through a combination of beam bunching, electron cooling, sextupole field corrections, and the suppression of collective effects through beam current limits. This record lifetime is required for a storage ring search for an intrinsic electric dipole moment on the deuteron at a statistical sensitivity level approaching 10^{-29} e cm.
Collapse
Affiliation(s)
- G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, St. Petersburg State University, 198504 St. Petersburg, Russia
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Baylac
- LPSC Université Grenoble-Alpes, CNRS/IN2P3, 38000 Grenoble, Cedex, France
| | - W Bernreuther
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany
| | - S Bertelli
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Böker
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C Böhme
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Bsaisou
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Chiladze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Contalbrigo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - J-M de Conto
- LPSC Université Grenoble-Alpes, CNRS/IN2P3, 38000 Grenoble, Cedex, France
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F M Esser
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - O Felden
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Glückler
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - T Hahnraths
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - R Hipple
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Hölscher
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, St. Petersburg State University, 198504 St. Petersburg, Russia
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kamys
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - H-J Krause
- Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Krewald
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Mchedlishvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Ulf-G Meißner
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Bethe Center for Theoretical Physics, Universität Bonn, 53115 Bonn, Germany
| | - S Mey
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - W Morse
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - F Müller
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Natour
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
- Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | - M Nioradze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - K Nowakowski
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - Y Orlov
- Cornell University, Ithaca, New York 14850, USA
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Rosenthal
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - Z Rudy
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Saleev
- Samara State Aerospace University, Samara 443086, Russia
| | - T Sefzick
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
- Department of Physics, KAIST, Daejeon 305-701, Republic of Korea
| | - Y Senichev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - M Simon
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Statera
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Straatmann
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- University of Ferrara and INFN, 44100 Ferrara, Italy
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - F Trinkel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - C Wilkin
- Physics and Astronomy Department, UCL, London WC1E 6BT, United Kingdom
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- ZentralInstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Zakrzewska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Zyuzin
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
5
|
Eversmann D, Hejny V, Hinder F, Kacharava A, Pretz J, Rathmann F, Rosenthal M, Trinkel F, Andrianov S, Augustyniak W, Bagdasarian Z, Bai M, Bernreuther W, Bertelli S, Berz M, Bsaisou J, Chekmenev S, Chiladze D, Ciullo G, Contalbrigo M, de Vries J, Dymov S, Engels R, Esser FM, Felden O, Gaisser M, Gebel R, Glückler H, Goldenbaum F, Grigoryev K, Grzonka D, Guidoboni G, Hanhart C, Heberling D, Hempelmann N, Hetzel J, Hipple R, Hölscher D, Ivanov A, Kamerdzhiev V, Kamys B, Keshelashvili I, Khoukaz A, Koop I, Krause HJ, Krewald S, Kulikov A, Lehrach A, Lenisa P, Lomidze N, Lorentz B, Maanen P, Macharashvili G, Magiera A, Maier R, Makino K, Mariański B, Mchedlishvili D, Meißner UG, Mey S, Nass A, Natour G, Nikolaev N, Nioradze M, Nogga A, Nowakowski K, Pesce A, Prasuhn D, Ritman J, Rudy Z, Saleev A, Semertzidis Y, Senichev Y, Shmakova V, Silenko A, Slim J, Soltner H, Stahl A, Stassen R, Statera M, Stephenson E, Stockhorst H, Straatmann H, Ströher H, Tabidze M, Talman R, Thörngren Engblom P, Trzciński A, Uzikov Y, Valdau Y, Valetov E, Vassiliev A, Weidemann C, Wilkin C, Wirzba A, Wrońska A, Wüstner P, Zakrzewska M, Zuprański P, Zyuzin D. New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision Experiments. Phys Rev Lett 2015; 115:094801. [PMID: 26371657 DOI: 10.1103/physrevlett.115.094801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Indexed: 06/05/2023]
Abstract
A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, the spin tune-defined as the number of spin precessions per turn-is given by ν(s)=γG (γ is the Lorentz factor, G the gyromagnetic anomaly). At 970 MeV/c, the deuteron spins coherently precess at a frequency of ≈120 kHz in the Cooler Synchrotron COSY. The spin tune is deduced from the up-down asymmetry of deuteron-carbon scattering. In a time interval of 2.6 s, the spin tune was determined with a precision of the order 10^{-8}, and to 1×10^{-10} for a continuous 100 s accelerator cycle. This renders the presented method a new precision tool for accelerator physics; controlling the spin motion of particles to high precision is mandatory, in particular, for the measurement of electric dipole moments of charged particles in a storage ring.
Collapse
Affiliation(s)
- D Eversmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - V Hejny
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Hinder
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kacharava
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Pretz
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - F Rathmann
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Rosenthal
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Trinkel
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Andrianov
- Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - W Augustyniak
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Z Bagdasarian
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - M Bai
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - W Bernreuther
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, Germany
| | - S Bertelli
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Berz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Bsaisou
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Chekmenev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Chiladze
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - G Ciullo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - M Contalbrigo
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - J de Vries
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Dymov
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - R Engels
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F M Esser
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - O Felden
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Gaisser
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - R Gebel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Glückler
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - F Goldenbaum
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Grigoryev
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - D Grzonka
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Guidoboni
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - C Hanhart
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - D Heberling
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - N Hempelmann
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - J Hetzel
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - R Hipple
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Hölscher
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - A Ivanov
- Faculty of Applied Mathematics and Control Processes, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - V Kamerdzhiev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - B Kamys
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - I Keshelashvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Khoukaz
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
| | - I Koop
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
| | - H-J Krause
- Peter Grünberg Institut, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S Krewald
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Kulikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Lehrach
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - P Lenisa
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - N Lomidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - B Lorentz
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - P Maanen
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
| | - G Macharashvili
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Magiera
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - R Maier
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - K Makino
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - B Mariański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Mchedlishvili
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - Ulf-G Meißner
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
| | - S Mey
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Nass
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - G Natour
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - N Nikolaev
- L.D. Landau Institute for Theoretical Physics, 142432 Chernogolovka, Russia
| | - M Nioradze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - A Nogga
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - K Nowakowski
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Pesce
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - D Prasuhn
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - J Ritman
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - Z Rudy
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - A Saleev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Semertzidis
- Center for Axion and Precision Physics Research, Institute for Basic Science, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Y Senichev
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - V Shmakova
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A Silenko
- Research Institute for Nuclear Problems, Belarusian State University, 220030 Minsk, Belarus
- Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - J Slim
- Institut für Hochfrequenztechnik, RWTH Aachen University, 52056 Aachen, Germany
| | - H Soltner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Stahl
- III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - R Stassen
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Statera
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - E Stephenson
- Indiana University Center for Spacetime Symmetries, Bloomington, Indiana 47405, USA
| | - H Stockhorst
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Straatmann
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H Ströher
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- JARA-FAME (Forces and Matter Experiments), Forschungszentrum Jülich and RWTH Aachen University, 52056 Aachen, Germany
| | - M Tabidze
- High Energy Physics Institute, Tbilisi State University, 0186 Tbilisi, Georgia
| | - R Talman
- Cornell University, Ithaca, New York 14850, USA
| | - P Thörngren Engblom
- University of Ferrara and INFN, 44100 Ferrara, Italy
- Department of Physics, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - A Trzciński
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - Yu Uzikov
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu Valdau
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - E Valetov
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Vassiliev
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
| | - C Weidemann
- University of Ferrara and INFN, 44100 Ferrara, Italy
| | - C Wilkin
- Physics and Astronomy Department, UCL, London, WC1E 6BT, United Kingdom
| | - A Wirzba
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - A Wrońska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Wüstner
- Zentralinstitut für Engineering, Elektronik und Analytik, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - M Zakrzewska
- Institute of Physics, Jagiellonian University, 30348 Cracow, Poland
| | - P Zuprański
- Department of Nuclear Physics, National Centre for Nuclear Research, 00681 Warsaw, Poland
| | - D Zyuzin
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
| |
Collapse
|
6
|
Goslawski P, Khoukaz A, Barsov S, Burmeister I, Chiladze D, Dymov S, Gebel R, Hartmann M, Kacharava A, Kulessa P, Lehrach A, Lorentz B, Maier R, Mersmann T, Mielke M, Mikirtychiants S, Ohm H, Papenbrock M, Prasuhn D, Rausmann T, Serdyuk V, Stockhorst H, Ströher H, Täschner A, Valdau Y, Wilkin C. New determination of the mass of theηmeson at COSY-ANKE. Int J Clin Exp Med 2012. [DOI: 10.1103/physrevd.85.112011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
7
|
Adlarson P, Adolph C, Augustyniak W, Baru V, Bashkanov M, Bednarski T, Bergmann FS, Berłowski M, Bhatt H, Brinkmann KT, Büscher M, Calén H, Clement H, Coderre D, Czerwiński E, Doroshkevich E, Ekström C, Engels R, Erven W, Eyrich W, Fedorets P, Föhl K, Fransson K, Goldenbaum F, Goslawski P, Grigoryev K, Grishina V, Gullström CO, Hampe J, Hanhart C, Heijkenskjöld L, Hejny V, Hinterberger F, Hodana M, Höistad B, Jacewicz M, Janusz M, Jany A, Jany BR, Jarczyk L, Johansson T, Kamys B, Kemmerling G, Khakimova O, Khoukaz A, Kistryn S, Klaja J, Kleines H, Kłos B, Kren F, Krzemień W, Kulessa P, Kullander S, Kupść A, Lalwani K, Lorentz B, Magiera A, Maier R, Marciniewski P, Mariański B, Mikirtychiants M, Moskal P, Morsch HP, Nandi BK, Niedźwiecki S, Ohm H, Passfeld A, Pauly C, del Rio EP, Petukhov Y, Piskunov N, Pluciński P, Podkopał P, Povtoreyko A, Prasuhn D, Pricking A, Pysz K, Rausmann T, Redmer CF, Ritman J, Roy A, Ruber RJMY, Rudy Z, Sawant S, Schadmand S, Schmidt A, Schroeder W, Sefzick T, Serdyuk V, Shah N, Siemaszko M, Siudak R, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Sterzenbach G, Stockhorst H, Ströher H, Szczurek A, Täschner A, Tolba T, Trzciński A, Varma R, Vlasov P, Wagner GJ, Węglorz W, Winnemöller A, Wirzba A, Wolke M, Wrońska A, Wüstner P, Wurm P, Yuan X, Yurev L, Zabierowski J, Zheng C, Zieliński MJ, Zipper W, Złomańczuk J, Zuprański P. Abashian-Booth-Crowe effect in basic double-pionic fusion: a new resonance? Phys Rev Lett 2011; 106:242302. [PMID: 21770567 DOI: 10.1103/physrevlett.106.242302] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Indexed: 05/31/2023]
Abstract
We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ(0)π(0) over the full energy region of the ABC effect, a pronounced low-mass enhancement in the ππ-invariant mass spectrum. The measurements, which cover also the transition region to the conventional t-channel ΔΔ process, were performed with the upgraded WASA detector setup at COSY. The data reveal the Abashian-Booth-Crowe effect to be uniquely correlated with a Lorentzian energy dependence in the integral cross section. The observables are consistent with a narrow resonance with m=2.37 GeV, Γ≈70 MeV and I(J(P))=0(3(+)) in both pn and ΔΔ systems. Necessary further tests of the resonance interpretation are discussed.
Collapse
Affiliation(s)
- P Adlarson
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Goslawski P, Khoukaz A, Gebel R, Hartman M, Kacharava A, Lehrach A, Lorentz B, Maier R, Mielke M, Papenbrock M, Prasuhn D, Stassen R, Stein H, Stockhorst H, Stroher H, Wilkin C. High precision beam momentum determination in a synchrotron using a spin resonance method. EPJ Web of Conferences 2010. [DOI: 10.1051/epjconf/20100303024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
9
|
Morozov VS, Chao AW, Krisch AD, Leonova MA, Raymond RS, Sivers DW, Wong VK, Garishvili A, Gebel R, Lehrach A, Lorentz B, Maier R, Prasuhn D, Stockhorst H, Welsch D, Hinterberger F, Kondratenko AM. Experimental test of a new technique to overcome spin-depolarizing resonances. Phys Rev Lett 2009; 102:244801. [PMID: 19659013 DOI: 10.1103/physrevlett.102.244801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2008] [Indexed: 05/28/2023]
Abstract
We recently tested a new spin resonance crossing technique, Kondratenko Crossing (KC), by sweeping an rf-solenoid's frequency through an rf-induced spin resonance with both the KC and traditional fast crossing (FC) patterns. Using both rf bunched and unbunched 1.85 GeV/c polarized deuterons stored in COSY, we varied the parameters of both crossing patterns. Compared to FC with the same crossing speed, KC reduced the depolarization by measured factors of 4.7 +/- 0.3 and 19_{-5};{+12} for unbunched and bunched beams, respectively. This clearly showed the large potential benefit of Kondratenko Crossing over fast crossing.
Collapse
Affiliation(s)
- V S Morozov
- Spin Physics Center, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Morozov VS, Chao AW, Krisch AD, Leonova MA, Raymond RS, Sivers DW, Wong VK, Garishvili A, Gebel R, Lehrach A, Lorentz B, Maier R, Prasuhn D, Stockhorst H, Welsch D, Hinterberger F, Ulbrich K, Schnase A, Stephenson EJ, Brantjes NPM, Onderwater CJG, da Silva M. Experimental verification of predicted beam-polarization oscillations near a spin resonance. Phys Rev Lett 2008; 100:054801. [PMID: 18352378 DOI: 10.1103/physrevlett.100.054801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2007] [Indexed: 05/26/2023]
Abstract
The Chao matrix formalism allows analytic calculations of a beam's polarization behavior inside a spin resonance. We recently tested its prediction of polarization oscillations occurring in a stored beam of polarized particles near a spin resonance. Using a 1.85 GeV/c polarized deuteron beam stored in the COoler SYnchrotron, we swept a new rf solenoid's frequency rather rapidly through 400 Hz during 100 ms, while varying the distance between the sweep's end frequency and the central frequency of an rf-induced spin resonance. Our measurements of the deuteron's polarization near and inside the resonance agree with the Chao formalism's predicted oscillations.
Collapse
Affiliation(s)
- V S Morozov
- Spin Physics Center, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Mersmann T, Khoukaz A, Büscher M, Chiladze D, Dymov S, Hartmann M, Hejny V, Kacharava A, Keshelashvili I, Kulessa P, Maeda Y, Mielke M, Mikirtychiants S, Ohm H, Papenbrock M, Prasuhn D, Rathmann F, Rausmann T, Schleichert R, Serdyuk V, Stein HJ, Ströher H, Täschner A, Valdau Y, Wilkin C, Wrońska A. Precision study of the eta3He system using the dp--> 3Heeta reaction. Phys Rev Lett 2007; 98:242301. [PMID: 17677956 DOI: 10.1103/physrevlett.98.242301] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Revised: 04/12/2007] [Indexed: 05/16/2023]
Abstract
The differential and total cross sections for the dp--> 3Heeta reaction have been measured in a high precision high statistics COSY-ANKE experiment near threshold using a continuous beam energy ramp up to an excess energy Q of 11.3 MeV with essentially 100% acceptance. The kinematics allowed the mean value of Q to be determined to about 9 keV. Evidence is found for the effects of higher partial waves for Q >or= 4 MeV. The very rapid rise of the total cross section to its maximum value within 0.5 MeV of threshold implies a very large eta3He scattering length and hence the presence of a quasibound state extremely close to threshold.
Collapse
Affiliation(s)
- T Mersmann
- Institut für Kernphysik, Universität Münster, 48149 Münster, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Yaschenko S, Dymov S, Kacharava A, Komarov V, Macharashvili G, Rathmann F, Barsov S, Gebel R, Hartmann M, Khoukaz A, Kulessa P, Kulikov A, Kurbatov V, Lang N, Lehmann I, Lorentz B, Mersmann T, Merzliakov S, Mikirtytchiants S, Mussgiller A, Nioradze M, Ohm H, Prasuhn D, Schleichert R, Seyfarth H, Steffens E, Stein HJ, Ströher H, Uzikov Y, Zalikhanov B, Zhuravlev N. Measurement of the analyzing power in p-->d-->(p p)n with a fast forward 1S0 proton pair. Phys Rev Lett 2005; 94:072304. [PMID: 15783808 DOI: 10.1103/physrevlett.94.072304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Indexed: 05/24/2023]
Abstract
A measurement of the analyzing power A(y) of the p-->d--> (p p) + n reaction was carried out at the ANKE spectrometer at COSY at beam energies of 0.5 and 0.8 GeV by detection of a fast forward proton pair of small excitation energy E(pp) < 3 MeV. The S-wave dominance in the fast diproton is experimentally demonstrated in this reaction. While at T(p) = 0.8 GeV the measured analyzing power almost vanishes, it rises to nearly unity at T(p) = 0.5 GeV for neutrons emitted at theta(c.m.)(n) = 167 degrees. The results are compared with a model taking into account one-nucleon exchange, single scattering, and Delta(1232) excitation in the intermediate state. The model describes fairly well the unpolarized cross section obtained earlier and the analyzing power at 0.8 GeV; it fails to reproduce A(y) at 0.5 GeV.
Collapse
Affiliation(s)
- S Yaschenko
- Physikalisches Institut II, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Rathmann F, Lenisa P, Steffens E, Contalbrigo M, Dalpiaz PF, Kacharava A, Lehrach A, Lorentz B, Maier R, Prasuhn D, Ströher H. A method to polarize stored antiprotons to a high degree. Phys Rev Lett 2005; 94:014801. [PMID: 15698088 DOI: 10.1103/physrevlett.94.014801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2004] [Indexed: 05/24/2023]
Abstract
Polarized antiprotons can be produced in a storage ring by spin-dependent interaction in a purely electron-polarized hydrogen gas target. The polarizing process is based on spin transfer from the polarized electrons of the target atoms to the orbiting antiprotons. After spin filtering for about two beam lifetimes at energies T approximately equal 40-170 MeV using a dedicated large acceptance ring, the antiproton beam polarization would reach P=0.2-0.4. Polarized antiprotons would open new and unique research opportunities for spin-physics experiments in p(-) p interactions.
Collapse
Affiliation(s)
- F Rathmann
- Institut für Kernphysik, Forschungzentrum Jülich, 52428 Jülich, Germany.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Leonova MA, Krisch AD, Morozov VS, Raymond RS, Wong VK, Gebel R, Lehrach A, Lorentz B, Maier R, Prasuhn D, Schnase A, Stockhorst H, Eversheim D, Hinterberger F, Ulbrich K. Achieving 99.9% proton spin-flip efficiency at higher energy with a small RF dipole. Phys Rev Lett 2004; 93:224801. [PMID: 15601095 DOI: 10.1103/physrevlett.93.224801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2004] [Indexed: 05/24/2023]
Abstract
We recently used a new ferrite rf dipole to study spin flipping of a 2.1 GeV/c vertically polarized proton beam stored in the COSY Cooler Synchrotron in Jülich, Germany. We swept the rf dipole's frequency through an rf-induced spin resonance to flip the beam's polarization direction. After determining the resonance's frequency, we varied the frequency range, frequency ramp time, and number of flips. At the rf dipole's maximum strength and optimum frequency range and ramp time, we measured a spin-flip efficiency of 99.92+/-0.04%. This result, along with a similar 0.49 GeV/c IUCF result, indicates that, due to the Lorentz invariance of an rf dipole's transverse integralBdl and the weak energy dependence of its spin-resonance strength, an only 35% stronger rf dipole should allow efficient spin flipping in the 100 GeV BNL RHIC Collider or even the 7 TeV CERN Large Hadron Collider.
Collapse
Affiliation(s)
- M A Leonova
- Spin Physics Center, University of Michigan, Ann Arbor, Michigan 48109-1120, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Kleber V, Büscher M, Chernyshev V, Dymov S, Fedorets P, Grishina V, Hanhart C, Hartmann M, Hejny V, Khoukaz A, Koch HR, Komarov V, Kondratyuk L, Koptev V, Lang N, Merzliakov S, Mikirtychiants S, Nekipelov M, Ohm H, Petrus A, Prasuhn D, Schleichert R, Sibirtsev A, Stein HJ, Ströher H, Watzlawik KH, Wüstner P, Yaschenko S, Zalikhanov B, Zychor I. a+0 (980)-resonance production in pp-->dK+K-0 reactions close to threshold. Phys Rev Lett 2003; 91:172304. [PMID: 14611338 DOI: 10.1103/physrevlett.91.172304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2003] [Indexed: 05/24/2023]
Abstract
The reaction pp-->dK+K(-)0 has been investigated at an excess energy of Q=46 MeV above the K+K(-)0 threshold with ANKE at the cooler synchrotron COSY-Jülich. From the detected coincident dK(+) pairs, about 1000 events with a missing K(-)0 were identified, corresponding to a total cross section of sigma(pp-->dK+K(-)0)=[38+/-2(stat)+/-14(syst)] nb. Invariant-mass and angular distributions have been jointly analyzed and reveal s-wave dominance between the two kaons, accompanied by a p wave between the deuteron and the kaon system. This is interpreted in terms of a(+)0 (980)-resonance production.
Collapse
Affiliation(s)
- V Kleber
- Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Bauer F, Bisplinghoff J, Büsser K, Busch M, Colberg T, Demirörs L, Dahl C, Eversheim PD, Eyser O, Felden O, Gebel R, Greiff J, Hinterberger F, Jonas E, Krause H, Lehmann C, Lindlein J, Maier R, Meinerzhagen A, Pauly C, Prasuhn D, Rohdjess H, Rosendaal D, von Rossen P, Schirm N, Scobel W, Ulbrich K, Weise E, Wolf T, Ziegler R. Measurement of spin-correlation parameters ANN, ASS, and ASL at 2.1 GeV in proton-proton elastic scattering. Phys Rev Lett 2003; 90:142301. [PMID: 12731910 DOI: 10.1103/physrevlett.90.142301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2002] [Indexed: 05/24/2023]
Abstract
At the Cooler Synchrotron COSY/Jülich spin-correlation parameters in elastic proton-proton (pp) scattering have been measured with a 2.11 GeV polarized proton beam and a polarized hydrogen atomic beam target. We report results for A(NN), A(SS), and A(SL) for c.m. scattering angles between 30 degrees and 90 degrees. Our data on A(SS)--the first measurement of this observable above 800 MeV--clearly disagrees with predictions of available pp scattering phase-shift solutions while A(NN) and A(SL) are reproduced reasonably well. We show that in the direct reconstruction of the scattering amplitudes from the body of available pp elastic scattering data at 2.1 GeV the number of possible solutions is considerably reduced.
Collapse
Affiliation(s)
- F Bauer
- Institut für Experimentalphysik, Universität Hamburg, D-22761 Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Rathmann F, Dymov S, Engels R, Jansen P, Kacharava A, Klehr F, Kleines H, Komarov V, Koptev V, Kravtsov P, Kulikov A, Kurbatov A, Lorentz B, Macharashvili G, Mikirtytchiants M, Nekipelov M, Nelyubin V, Prasuhn D, Petrus A, Sarkadi J, Seyfarth H, Schieck HPG, Steffens E, Ströher H, Uzikov Y, Vassiliev A, Yaschenko S, Zalikhanov B, Zwoll K. The polarized internal gas target for the deuteron break-up experiment of ANKE at COSY-Jülich. ACTA ACUST UNITED AC 2002. [DOI: 10.1007/s10582-002-0163-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
18
|
Altmeier M, Bauer F, Bisplinghoff J, Busch M, Busser K, Colberg T, Demirors L, Diehl O, Engelhardt HP, Eversheim PD, Felden O, Gebel R, Glende M, Greiff J, Hinterberger F, Jonas E, Krause H, Lindemann T, Lindlein J, Maier R, Maschuw R, Meinerzhagen A, Prasuhn D, Rohdjess H, Rosendaal D. Excitation functions of the analyzing power in pp--> scattering from 0.45 to 2.5 GeV. Phys Rev Lett 2000; 85:1819-1822. [PMID: 10970622 DOI: 10.1103/physrevlett.85.1819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2000] [Indexed: 05/23/2023]
Abstract
Excitation functions A(N)(p(p),Theta(c.m.)) of the analyzing power in pp--> elastic scattering have been measured with a polarized atomic hydrogen target for projectile momenta p(p) between 1000 and 3300 MeV/ c. The experiment was performed for scattering angles 30 degrees </=Theta(c.m.)</=90 degrees using the recirculating beam of the proton storage ring COSY during acceleration. The resulting excitation functions and angular distributions of high internal consistency have significant impact on the recent phase shift solution SAID SP99, in particular, on the spin triplet phase shifts between 1000 and 1800 MeV, and demonstrate the limited predictive power of single-energy phase shift solutions at these energies.
Collapse
Affiliation(s)
- M Altmeier
- Institut fur Strahlen-und Kernphysik, Universitat Bonn, D-53115 Bonn, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|