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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Agram JL, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Anderson S, Andrieu B, Arnoud Y, Askew A, Asman B, Atramentov O, Autermann C, Avila C, Badaud F, Baden A, Baldin B, Balm PW, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Beauceron S, Begel M, Bellavance A, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borcherding F, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burnett TH, Busato E, Butler JM, Bystricky J, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevalier L, Cho DK, Choi S, Christiansen T, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Coss J, Cothenet A, Cousinou MC, Crépé-Renaudin S, Cristetiu M, Cummings MAC, Cutts D, da Motta H, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Dean S, Déliot F, Delsart PA, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dong H, Doulas S, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Eltzroth JT, Elvira VD, Eno S, Ermolov P, Eroshin OV, Estrada J, Evans D, Evans H, Evdokimov A, Evdokimov VN, Fast J, Fatakia SN, Feligioni L, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Freeman W, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay P, Gelé D, Gelhaus R, Genser K, Gerber CE, Gershtein Y, Ginther G, Golling T, Gómez B, Gounder K, Goussiou A, Grannis PD, Greder S, Greenlee H, Greenwood ZD, Gregores EM, Gris P, Grivaz JF, Groer L, Grünendahl S, Grünewald MW, Gurzhiev SN, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Hagopian S, Hall I, Hall RE, Han C, Han L, Hanagaki K, Harder K, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hohlfeld M, Hong SJ, Hooper R, Houben P, Hu Y, Huang J, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jain V, Jakobs K, Jenkins A, Jesik R, Johns K, Johnson M, Jonckheere A, Jonsson P, Jöstlein H, Juste A, Kado MM, Käfer D, Kahl W, Kahn S, Kajfasz E, Kalinin AM, Kalk J, Karmanov D, Kasper J, Kau D, Kehoe R, Kermiche S, Kesisoglou S, Khanov A, Kharchilava A, Kharzheev YM, Kim KH, Klima B, Klute M, Kohli JM, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Krzywdzinski S, Kuleshov S, Kulik Y, Kunori S, Kupco A, Kurca T, Lager S, Lahrichi N, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee SW, Lee WM, Leflat A, Lehner F, Leonidopoulos C, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linn SL, Linnemann J, Lipaev VV, Lipton R, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Lubatti HJ, Lueking L, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, Mattingly SEK, Mayorov AA, McCarthy R, McCroskey R, Meder D, Melanson HL, Melnitchouk A, Merkin M, Merritt KW, Meyer A, Miettinen H, Mihalcea D, Mitrevski J, Mokhov N, Molina J, Mondal NK, Montgomery HE, Moore RW, Muanza GS, Mulders M, Mutaf YD, Nagy E, Narain M, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, Nurse E, O'dell V, O'neil DC, Oguri V, Oliveira N, Oshima N, Otero Y Garzón GJ, Padley P, Parashar N, Park J, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Perea PM, Perez E, Peters O, Pétroff P, Petteni M, Phaf L, Piegaia R, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pope BG, Prado da Silva WL, Prosper HB, Protopopescu S, Przybycien MB, Qian J, Quadt A, Quinn B, Rani KJ, Rapidis PA, Ratoff PN, Reay NW, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schamberger RD, Schellman H, Schieferdecker P, Schmitt C, Schukin AA, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shephard WD, Shpakov D, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Smolek K, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Song Y, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stanton NR, Stark J, Steele J, Steinbrück G, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tentindo-Repond S, Thomas E, Thooris B, Tomoto M, Toole T, Torborg J, Towers S, Trefzger T, Trincaz-Duvoid S, Tuchming B, Tully C, Turcot AS, Tuts PM, Uvarov L, Uvarov S, Uzunyan S, Vachon B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vlimant JR, Von Toerne E, Vreeswijk M, Vu Anh T, Wahl HD, Walker R, Wang L, Wang ZM, Warchol J, Warsinsky M, Watts G, Wayne M, Weber M, Weerts H, Wegner M, Wermes N, White A, White V, Whiteson D, Wicke D, Wijngaarden DA, Wilson GW, Wimpenny SJ, Wittlin J, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xu Q, Xuan N, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yen Y, Yip K, Youn SW, Yu J, Yurkewicz A, Zabi A, Zatserklyaniy A, Zdrazil M, Zeitnitz C, Zhang D, Zhang X, Zhao T, Zhao Z, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zitoun R, Zutshi V, Zverev EG, Zylberstejn A. Search for Wbb and WH production in pp collisions at square root [s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2005; 94:091802. [PMID: 15783954 DOI: 10.1103/physrevlett.94.091802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2004] [Indexed: 05/24/2023]
Abstract
We present a search for Wbb production in pp collisions at sqrt[s]=1.96 TeV in events containing one electron, an imbalance in transverse momentum, and two b-tagged jets. Using 174 pb(-1) of integrated luminosity accumulated by the D0 experiment at the Fermilab Tevatron collider, and the standard-model description of such events, we set a 95% C.L. upper limit on Wbb production of 6.6 pb for b quarks with transverse momenta p(b)(T)>20 GeV and bb separation in pseudorapidity-azimuth space DeltaR(bb)>0.75. Restricting the search to optimized bb mass intervals provides upper limits on WH production of 9.0-12.2 pb for Higgs-boson masses of 105-135 GeV.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams M, Adams T, Agelou M, Agram JL, Ahn SH, Ahsan M, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Anderson S, Andrieu B, Arnoud Y, Askew A, Asman B, Atramentov O, Autermann C, Avila C, Badaud F, Baden A, Baldin B, Balm PW, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Beauceron S, Begel M, Bellavance A, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Binder M, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Borcherding F, Borissov G, Bos K, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burnett TH, Busato E, Butler JM, Bystricky J, Carvalho W, Casey BCK, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevalier L, Cho DK, Choi S, Christiansen T, Christofek L, Claes D, Clément B, Clément C, Coadou Y, Cooke M, Cooper WE, Coppage D, Corcoran M, Coss J, Cothenet A, Cousinou MC, Crépé-Renaudin S, Cristetiu M, Cummings MAC, Cutts D, da Motta H, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Dean S, Déliot F, Delsart PA, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dong H, Doulas S, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Eltzroth JT, Elvira VD, Eno S, Ermolov P, Eroshin OV, Estrada J, Evans D, Evans H, Evdokimov A, Evdokimov VN, Fast J, Fatakia SN, Feligioni L, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Freeman W, Fu S, Fuess S, Gadfort T, Galea CF, Gallas E, Galyaev E, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay P, Gelé D, Gelhaus R, Genser K, Gerber CE, Gershtein Y, Ginther G, Golling T, Gómez B, Gounder K, Goussiou A, Grannis PD, Greder S, Greenlee H, Greenwood ZD, Gregores EM, Gris P, Grivaz JF, Groer L, Grünendahl S, Grünewald MW, Gurzhiev SN, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Hagopian S, Hall I, Hall RE, Han C, Han L, Hanagaki K, Harder K, Harrington R, Hauptman JM, Hauser R, Hays J, Hebbeker T, Hedin D, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hohlfeld M, Hong SJ, Hooper R, Houben P, Hu Y, Huang J, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jain V, Jakobs K, Jenkins A, Jesik R, Johns K, Johnson M, Jonckheere A, Jonsson P, Jöstlein H, Juste A, Kado MM, Käfer D, Kahl W, Kahn S, Kajfasz E, Kalinin AM, Kalk J, Karmanov D, Kasper J, Kau D, Kehoe R, Kermiche S, Kesisoglou S, Khanov A, Kharchilava A, Kharzheev YM, Kim KH, Klima B, Klute M, Kohli JM, Kopal M, Korablev VM, Kotcher J, Kothari B, Koubarovsky A, Kozelov AV, Kozminski J, Krzywdzinski S, Kuleshov S, Kulik Y, Kunori S, Kupco A, Kurca T, Lager S, Lahrichi N, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee SW, Lee WM, Leflat A, Lehner F, Leonidopoulos C, Lewis P, Li J, Li QZ, Lima JGR, Lincoln D, Linn SL, Linnemann J, Lipaev VV, Lipton R, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Lubatti HJ, Lueking L, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magerkurth A, Magnan AM, Makovec N, Mal PK, Malik S, Malyshev VL, Mao HS, Maravin Y, Martens M, Mattingly SEK, Mayorov AA, McCarthy R, McCroskey R, Meder D, Melanson HL, Melnitchouk A, Merkin M, Merritt KW, Meyer A, Miettinen H, Mihalcea D, Mitrevski J, Mokhov N, Molina J, Mondal NK, Montgomery HE, Moore RW, Muanza GS, Mulders M, Mutaf YD, Nagy E, Narain M, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, Nurse E, O'dell V, O'neil DC, Oguri V, Oliveira N, Oshima N, Otero Y Garzón GJ, Padley P, Parashar N, Park J, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Perea PM, Perez E, Peters O, Pétroff P, Petteni M, Phaf L, Piegaia R, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pope BG, Prado da Silva WL, Prosper HB, Protopopescu S, Przybycien MB, Qian J, Quadt A, Quinn B, Rani KJ, Rapidis PA, Ratoff PN, Reay NW, Reucroft S, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schamberger RD, Schellman H, Schieferdecker P, Schmitt C, Schukin AA, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shamim M, Shary V, Shephard WD, Shpakov D, Sidwell RA, Simak V, Sirotenko V, Skubic P, Slattery P, Smith RP, Smolek K, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Song Y, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stanton NR, Stark J, Steele J, Steinbrück G, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tentindo-Repond S, Thomas E, Thooris B, Tomoto M, Toole T, Torborg J, Towers S, Trefzger T, Trincaz-Duvoid S, Tuchming B, Tully C, Turcot AS, Tuts PM, Uvarov L, Uvarov S, Uzunyan S, Vachon B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vlimant JR, Von Toerne E, Vreeswijk M, Vu Anh T, Wahl HD, Walker R, Wang L, Wang ZM, Warchol J, Warsinsky M, Watts G, Wayne M, Weber M, Weerts H, Wegner M, Wermes N, White A, White V, Whiteson D, Wicke D, Wijngaarden DA, Wilson GW, Wimpenny SJ, Wittlin J, Wobisch M, Womersley J, Wood DR, Wyatt TR, Xu Q, Xuan N, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yen Y, Yip K, Youn SW, Yu J, Yurkewicz A, Zabi A, Zatserklyaniy A, Zdrazil M, Zeitnitz C, Zhang D, Zhang X, Zhao T, Zhao Z, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zitoun R, Zutshi V, Zverev EG, Zylberstejn A. Search for the flavor-changing neutral current decay B0s--> mu(+) mu(-) in pp Collisions at sqrt[s] = 1.96 TeV with the D0 detector. PHYSICAL REVIEW LETTERS 2005; 94:071802. [PMID: 15783803 DOI: 10.1103/physrevlett.94.071802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2004] [Indexed: 05/24/2023]
Abstract
We present the results of a search for the flavor-changing neutral current decay B(0)(s)--> mu(+) mu(-) using a data set with integrated luminosity of 240 pb(-1) of pp collisions at sqrt[s] = 1.96 TeV collected with the D0 detector in run II of the Fermilab Tevatron collider. We find the upper limit on the branching fraction to be B(B(0)(s)--> mu(+) mu(-)) < or= 5.0 x 10(-7) at the 95% C.L. assuming no contributions from the decay B(0)(d)--> mu(+) mu(-) in the signal region. This limit is the most stringent upper bound on the branching fraction B(0)(s)--> mu(+) mu(-) to date.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams DL, Adams M, Adams T, Agelou M, Agram JL, Ahmed SN, Ahn SH, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anderson S, Andrieu B, Arnoud Y, Askew A, Asman B, Atramentov O, Autermann C, Avila C, Babukhadia L, Bacon TC, Baden A, Baffioni S, Baldin B, Balm PW, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Beauceron S, Beaudette F, Begel M, Bellavance A, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Besson A, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Bhattacharjee M, Binder M, Bischoff A, Black KM, Blackler I, Blazey G, Blekman F, Bloch D, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Bonamy P, Borcherding F, Borissov G, Bos K, Bose T, Boswell C, Brandt A, Briskin G, Brock R, Brooijmans G, Bross A, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burnett TH, Busato E, Butler JM, Bystricky J, Canelli F, Carvalho W, Casey BCK, Casey D, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevalier L, Cho DK, Choi S, Chopra S, Christiansen T, Christofek L, Claes D, Clark AR, Clément B, Clément C, Coadou Y, Colling DJ, Coney L, Connolly B, Cooke M, Cooper WE, Coppage D, Corcoran M, Coss J, Cothenet A, Cousinou MC, Crépé-Renaudin S, Cristetiu M, Cummings MAC, Cutts D, da Motta H, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Dean S, Del Signore K, Déliot F, Delsart PA, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dong H, Doulas S, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Eltzroth JT, Elvira VD, Eno S, Ermolov P, Eroshin OV, Estrada J, Evans D, Evans H, Evdokimov A, Evdokimov VN, Fast J, Fatakia SN, Fein D, Feligioni L, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleuret F, Fortner M, Fox H, Freeman W, Fu S, Fuess S, Galea CF, Gallas E, Galyaev E, Gao M, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gelé D, Gelhaus R, Genser K, Gerber CE, Gershtein Y, Geurkov G, Ginther G, Goldmann K, Golling T, Gómez B, Gounder K, Goussiou A, Graham G, Grannis PD, Greder S, Green JA, Greenlee H, Greenwood ZD, Gregores EM, Grinstein S, Grivaz JF, Groer L, Grünendahl S, Grünewald MW, Gu W, Gurzhiev SN, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haggerty H, Hagopian S, Hall I, Hall RE, Han C, Han L, Hanagaki K, Hanlet P, Harder K, Harrington R, Hauptman JM, Hauser R, Hays C, Hays J, Hebbeker T, Hebert C, Hedin D, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hohlfeld M, Hong SJ, Hooper R, Hou S, Hu Y, Huang J, Huang Y, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jain V, Jakobs K, Jenkins A, Jesik R, Jiang Y, Johns K, Johnson M, Johnson P, Jonckheere A, Jonsson P, Jöstlein H, Juste A, Kado MM, Käfer D, Kahl W, Kahn S, Kajfasz E, Kalinin AM, Kalk J, Karmanov D, Kasper J, Kau D, Ke Z, Kehoe R, Kermiche S, Kesisoglou S, Khanov A, Kharchilava A, Kharzheev YM, Kim KH, Klima B, Klute M, Kohli JM, Kopal M, Korablev VM, Kotcher J, Kothari B, Kotwal AV, Koubarovsky A, Kouchner A, Kouznetsov O, Kozelov AV, Kozminski J, Krane J, Krishnaswamy MR, Krzywdzinski S, Kubantsev M, Kuleshov S, Kulik Y, Kunori S, Kupco A, Kurca T, Kuznetsov VE, Lager S, Lahrichi N, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee SW, Lee WM, Leflat A, Leggett C, Lehner F, Leonidopoulos C, Lewis P, Li J, Li QZ, Li X, Lima JGR, Lincoln D, Linn SL, Linnemann J, Lipaev VV, Lipton R, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Lu J, Lubatti HJ, Lucotte A, Lueking L, Luo C, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magerkurth A, Magnan AM, Maity M, Mal PK, Malik S, Malyshev VL, Manankov V, Mao HS, Maravin Y, Marshall T, Martens M, Martin MI, Mattingly SEK, Mayorov AA, McCarthy R, McCroskey R, McMahon T, Meder D, Melanson HL, Melnitchouk A, Meng X, Merkin M, Merritt KW, Meyer A, Miao C, Miettinen H, Mihalcea D, Mishra CS, Mitrevski J, Mokhov N, Molina J, Mondal NK, Montgomery HE, Moore RW, Mostafa M, Muanza GS, Mulders M, Mutaf YD, Nagy E, Nang F, Narain M, Narasimham VS, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, Nurse E, O'Dell V, O'Neil DC, Oguri V, Oliveira N, Olivier B, Oshima N, Otero y Garzón GJ, Padley P, Papageorgiou K, Parashar N, Park J, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Perea PM, Perez E, Peters O, Pétroff P, Petteni M, Phaf L, Piegaia R, Podesta-Lerma PLM, Podstavkov VM, Pope BG, Popkov E, Prado da Silva WL, Prosper HB, Protopopescu S, Przybycien MB, Qian J, Quadt A, Quinn B, Rani KJ, Rapidis PA, Ratoff PN, Reay NW, Renardy JF, Reucroft S, Rha J, Ridel M, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Royon C, Rubinov P, Ruchti R, Sabirov BM, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schamberger RD, Schellman H, Schieferdecker P, Schmitt C, Schukin AA, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shary V, Shephard WD, Shpakov D, Sidwell RA, Simak V, Sirotenko V, Skow D, Skubic P, Slattery P, Smith RP, Smolek K, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Song Y, Sonnenschein L, Sopczak A, Sorín V, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stanton NR, Stark J, Steele J, Steinbrück G, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strovink M, Stutte L, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tentindo-Repond S, Thomas E, Thooris B, Tomoto M, Toole T, Torborg J, Towers S, Trefzger T, Trincaz-Duvoid S, Trippe TG, Tuchming B, Tully C, Turcot AS, Tuts PM, Uvarov L, Uvarov S, Uzunyan S, Vachon B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vlimant JR, Von Toerne E, Vreeswijk M, Vu Anh T, Wahl HD, Walker R, Wallace N, Wang ZM, Warchol J, Warsinsky M, Watts G, Wayne M, Weber M, Weerts H, Wegner M, Wermes N, White A, White V, Whiteson D, Wicke D, Wijngaarden DA, Wilson GW, Wimpenny SJ, Wittlin J, Wlodek T, Wobisch M, Womersley J, Wood DR, Wu Z, Wyatt TR, Xu Q, Xuan N, Yamada R, Yasuda T, Yatsunenko YA, Yen Y, Yip K, Youn SW, Yu J, Yurkewicz A, Zabi A, Zatserklyaniy A, Zdrazil M, Zeitnitz C, Zhang B, Zhang D, Zhang X, Zhao T, Zhao Z, Zheng H, Zhou B, Zhou Z, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zitoun R, Zutshi V, Zverev EG, Zylberstejn A. Search for supersymmetry with gauge-mediated breaking in diphoton events at D0. PHYSICAL REVIEW LETTERS 2005; 94:041801. [PMID: 15783547 DOI: 10.1103/physrevlett.94.041801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2004] [Indexed: 05/24/2023]
Abstract
We report the results of a search for supersymmetry (SUSY) with gauge-mediated breaking in the missing transverse energy distribution of inclusive diphoton events using 263 pb(-1) of data collected by the D0 experiment at the Fermilab Tevatron Collider in 2002-2004. No excess is observed above the background expected from standard model processes, and lower limits on the masses of the lightest neutralino and chargino of about 108 and 195 GeV, respectively, are set at the 95% confidence level. These are the most stringent limits to date for models with gauge-mediated SUSY breaking with a short-lived neutralino as the next-to-lightest SUSY particle.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams DL, Adams M, Adams T, Agelou M, Agram JL, Ahmed SN, Ahn SH, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anastasoaie M, Anderson S, Andrieu B, Arnoud Y, Askew A, Asman B, Atramentov O, Autermann C, Avila C, Babukhadia L, Bacon TC, Badaud F, Baden A, Baffioni S, Baldin B, Balm PW, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Beauceron S, Beaudette F, Begel M, Bellavance A, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Besson A, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Bhattacharjee M, Binder M, Bischoff A, Black KM, Blackler I, Blazey G, Blekman F, Blessing S, Bloch D, Blumenschein U, Boehnlein A, Boeriu O, Bolton TA, Bonamy P, Borcherding F, Borissov G, Bos K, Bose T, Boswell C, Brandt A, Briskin G, Brock R, Brooijmans G, Bross A, Buchanan NJ, Buchholz D, Buehler M, Buescher V, Burdin S, Burnett TH, Busato E, Butler JM, Bystricky J, Canelli F, Carvalho W, Casey BCK, Casey D, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevalier L, Cho DK, Choi S, Chopra S, Christiansen T, Christofek L, Claes D, Clark AR, Clément B, Clément C, Coadou Y, Colling DJ, Coney L, Connolly B, Cooke M, Cooper WE, Coppage D, Corcoran M, Coss J, Cothenet A, Cousinou MC, Crépé-Renaudin S, Cristetiu M, Cummings MAC, Cutts D, da Motta H, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Dean S, Del Signore K, Déliot F, Delsart PA, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dong H, Doulas S, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Eltzroth JT, Elvira VD, Eno S, Ermolov P, Eroshin OV, Estrada J, Evans D, Evans H, Evdokimov A, Evdokimov VN, Fast J, Fatakia SN, Fein D, Feligioni L, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fleuret F, Fortner M, Fox H, Freeman W, Fu S, Fuess S, Galea CF, Gallas E, Galyaev E, Gao M, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gay P, Gelé D, Gelhaus R, Genser K, Gerber CE, Gershtein Y, Geurkov G, Ginther G, Goldmann K, Golling T, Gómez B, Gounder K, Goussiou A, Graham G, Grannis PD, Greder S, Green JA, Greenlee H, Greenwood ZD, Gregores EM, Grinstein S, Gris P, Grivaz JF, Groer L, Grünendahl S, Grünewald MW, Gu W, Gurzhiev SN, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haggerty H, Hagopian S, Hall I, Hall RE, Han C, Han L, Hanagaki K, Hanlet P, Harder K, Harrington R, Hauptman JM, Hauser R, Hays C, Hays J, Hebbeker T, Hebert C, Hedin D, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hohlfeld M, Hong SJ, Hooper R, Hou S, Houben P, Hu Y, Huang J, Huang Y, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jain V, Jakobs K, Jenkins A, Jesik R, Jiang Y, Johns K, Johnson M, Johnson P, Jonckheere A, Jonsson P, Jöstlein H, Juste A, Kado MM, Käfer D, Kahl W, Kahn S, Kajfasz E, Kalinin AM, Kalk J, Karmanov D, Kasper J, Kau D, Ke Z, Kehoe R, Kermiche S, Kesisoglou S, Khanov A, Kharchilava A, Kharzheev YM, Kim KH, Klima B, Klute M, Kohli JM, Kopal M, Korablev VM, Kotcher J, Kothari B, Kotwal AV, Koubarovsky A, Kouznetsov O, Kozelov AV, Kozminski J, Krane J, Krishnaswamy MR, Krzywdzinski S, Kubantsev M, Kuleshov S, Kulik Y, Kunori S, Kupco A, Kurca T, Kuznetsov VE, Lager S, Lahrichi N, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee SW, Lee WM, Leflat A, Leggett C, Lehner F, Leonidopoulos C, Lewis P, Li J, Li QZ, Li X, Lima JGR, Lincoln D, Linn SL, Linnemann J, Lipaev VV, Lipton R, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Lu J, Lubatti HJ, Lucotte A, Lueking L, Luo C, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magerkurth A, Magnan AM, Maity M, Makovec N, Mal PK, Malik S, Malyshev VL, Manankov V, Mao HS, Maravin Y, Marshall T, Martens M, Martin MI, Mattingly SEK, Mayorov AA, McCarthy R, McCroskey R, McMahon T, Meder D, Melanson HL, Melnitchouk A, Meng X, Merkin M, Merritt KW, Meyer A, Miao C, Miettinen H, Mihalcea D, Mitrevski J, Mokhov N, Molina J, Mondal NK, Montgomery HE, Moore RW, Mostafa M, Muanza GS, Mulders M, Mutaf YD, Nagy E, Nang F, Narain M, Narasimham VS, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, Nurse E, O'Dell V, O'Neil DC, Oguri V, Oliveira N, Olivier B, Oshima N, Otero y Garzón GJ, Padley P, Papageorgiou K, Parashar N, Park J, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Perea PM, Perez E, Peters O, Pétroff P, Petteni M, Phaf L, Piegaia R, Podesta-Lerma PLM, Podstavkov VM, Pogorelov Y, Pope BG, Popkov E, Prado da Silva WL, Prosper HB, Protopopescu S, Przybycien MB, Qian J, Quadt A, Quinn B, Rani KJ, Rapidis PA, Ratoff PN, Reay NW, Renardy JF, Reucroft S, Rha J, Ridel M, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Royon C, Rubinov P, Ruchti R, Sabirov BM, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schamberger RD, Schellman H, Schieferdecker P, Schmitt C, Schukin AA, Schwartzman A, Schwienhorst R, Sengupta S, Severini H, Shabalina E, Shary V, Shephard WD, Shpakov D, Sidwell RA, Simak V, Sirotenko V, Skow D, Skubic P, Slattery P, Smith RP, Smolek K, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Song Y, Sonnenschein L, Sopczak A, Sorín V, Sosebee M, Soustruznik K, Souza M, Spurlock B, Stanton NR, Stark J, Steele J, Steinbrück G, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strovink M, Stutte L, Sumowidagdo S, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tentindo-Repond S, Thomas E, Thooris B, Tomoto M, Toole T, Torborg J, Towers S, Trefzger T, Trincaz-Duvoid S, Trippe TG, Tuchming B, Tully C, Turcot AS, Tuts PM, Uvarov L, Uvarov S, Uzunyan S, Vachon B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Von Vlimant JR, Toerne E, Vreeswijk M, Vu Anh T, Wahl HD, Walker R, Wallace N, Wang ZM, Warchol J, Warsinsky M, Watts G, Wayne M, Weber M, Weerts H, Wegner M, Wermes N, White A, White V, Whiteson D, Wicke D, Wijngaarden DA, Wilson GW, Wimpenny SJ, Wittlin J, Wlodek T, Wobisch M, Womersley J, Wood DR, Wu Z, Wyatt TR, Xu Q, Xuan N, Yamada R, Yan M, Yasuda T, Yatsunenko YA, Yen Y, Yip K, Youn SW, Yu J, Yurkewicz A, Zabi A, Zatserklyaniy A, Zdrazil M, Zeitnitz C, Zhang B, Zhang D, Zhang X, Zhao T, Zhao Z, Zheng H, Zhou B, Zhou Z, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zitoun R, Zutshi V, Zverev EG, Zylberstejn A. Measurement of the B0s lifetime in the exclusive decay channel B0s-->J/psiphi. PHYSICAL REVIEW LETTERS 2005; 94:042001. [PMID: 15783550 DOI: 10.1103/physrevlett.94.042001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2004] [Indexed: 05/24/2023]
Abstract
Using the exclusive decay B0s-->J/psi(mu+mu-)phi(K+K-), we report the most precise single measurement of the B0s lifetime. The data sample corresponds to an integrated luminosity of approximately 220 pb(-1) collected with the D0 detector at the Fermilab Tevatron Collider in 2002-2004. We reconstruct 337 signal candidates, from which we extract the B0s lifetime, tau(B0s)=1.444(+0.098)(-0.090)(stat)+/-0.020(sys) ps. We also report a measurement for the lifetime of the B0 meson using the exclusive decay B0-->J/psi(mu+mu-)K*0(892)(K+pi-). We reconstruct 1370 signal candidates, obtaining tau(B0)=1.473(+0.052)(-0.050)(stat)+/-0.023(sys) ps, and the ratio of lifetimes, tau(B0s)/tau(B0)=0.980(+0.076)(-0.071)(stat)+/-0.003(sys).
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams DL, Adams M, Adams T, Agelou M, Agram JL, Ahmed SN, Ahn SH, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anderson S, Andrieu B, Arnoud Y, Askew A, Asman B, Autermann C, Avila C, Babukhadia L, Bacon TC, Baden A, Baffioni S, Baldin B, Balm PW, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Beauceron S, Beaudette F, Begel M, Beri SB, Bernardi G, Bertram I, Besançon M, Besson A, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Bhattacharjee M, Binder M, Bischoff A, Black KM, Blackler I, Blazey G, Blekman F, Bloch D, Blumenschein U, Boehnlein A, Bolton TA, Bonamy P, Borcherding F, Borissov G, Bos K, Bose T, Boswell C, Brandt A, Briskin G, Brock R, Brooijmans G, Bross A, Buchholz D, Buehler M, Buescher V, Burdin S, Burnett TH, Busato E, Butler JM, Bystricky J, Canelli F, Carvalho W, Casey BCK, Casey D, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevalier L, Cho DK, Choi S, Chopra S, Christiansen T, Christofek L, Claes D, Clark AR, Clément C, Coadou Y, Colling DJ, Coney L, Connolly B, Cooper WE, Coppage D, Corcoran M, Coss J, Cothenet A, Cousinou MC, Crépé-Renaudin S, Cristetiu M, Cummings MAC, Cutts D, da Motta H, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Dean S, Del Signore K, Déliot F, Delsart PA, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dong H, Doulas S, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Eltzroth JT, Elvira VD, Eno S, Ermolov P, Eroshin OV, Estrada J, Evans D, Evans H, Evdokimov A, Evdokimov VN, Fast J, Fatakia SN, Fein D, Feligioni L, Ferbel T, Fiedler F, Filthaut F, Fisk HE, Fleuret F, Fortner M, Fox H, Freeman W, Fu S, Fuess S, Galea CF, Gallas E, Galyaev E, Gao M, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gelé D, Gelhaus R, Genser K, Gerber CE, Gershtein Y, Geurkov G, Ginther G, Goldmann K, Golling T, Gómez B, Gounder K, Goussiou A, Graham G, Grannis PD, Greder S, Green JA, Greenlee H, Greenwood ZD, Gregores EM, Grinstein S, Grivaz JF, Groer L, Grünendahl S, Grünewald MW, Gu W, Gurzhiev SN, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haggerty H, Hagopian S, Hall I, Hall RE, Han C, Han L, Hanagaki K, Hanlet P, Harder K, Hauptman JM, Hauser R, Hays C, Hays J, Hebert C, Hedin D, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hohlfeld M, Hong SJ, Hooper R, Hou S, Hu Y, Huang J, Huang Y, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jain V, Jakobs K, Jenkins A, Jesik R, Jiang Y, Johns K, Johnson M, Johnson P, Jonckheere A, Jonsson P, Jöstlein H, Juste A, Kado MM, Käfer D, Kahl W, Kahn S, Kajfasz E, Kalinin AM, Kalk J, Karmanov D, Kasper J, Kau D, Ke Z, Kehoe R, Kermiche S, Kesisoglou S, Khanov A, Kharchilava A, Kharzheev YM, Kim KH, Klima B, Klute M, Kohli JM, Kopal M, Korablev V, Kotcher J, Kothari B, Kotwal AV, Koubarovsky A, Kouchner A, Kouznetsov O, Kozelov AV, Kozminski J, Krane J, Krishnaswamy MR, Krzywdzinski S, Kubantsev M, Kuleshov S, Kulik Y, Kunori S, Kupco A, Kurca T, Kuznetsov VE, Lager S, Lahrichi N, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee SW, Lee WM, Leflat A, Leggett C, Lehner F, Leonidopoulos C, Lewis P, Li J, Li QZ, Li X, Lima JGR, Lincoln D, Linn SL, Linnemann J, Lipton R, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Lu J, Lubatti HJ, Lucotte A, Lueking L, Luo C, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Mättig P, Magnan AM, Maity M, Mal PK, Malik S, Malyshev VL, Manankov V, Mao HS, Maravin Y, Marshall T, Martens M, Martin MI, Mattingly SEK, Mayorov AA, McCarthy R, McCroskey R, McMahon T, Meder D, Melanson HL, Melnitchouk A, Meng X, Merkin M, Merritt KW, Meyer A, Miao C, Miettinen H, Mihalcea D, Mishra CS, Mitrevski J, Mokhov N, Molina J, Mondal NK, Montgomery HE, Moore RW, Mostafa M, Muanza GS, Mulders M, Mutaf YD, Nagy E, Nang F, Narain M, Narasimham VS, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, Nurse E, O'Dell V, O'Neil DC, Oguri V, Oliveira N, Olivier B, Oshima N, Otero y Garzón GJ, Padley P, Papageorgiou K, Parashar N, Park J, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Perea PM, Perez E, Peters O, Pétroff P, Petteni M, Phaf L, Piegaia R, Podesta-Lerma PLM, Podstavkov VM, Pope BG, Popkov E, Prado da Silva WL, Prosper HB, Protopopescu S, Przybycien MB, Qian J, Quadt A, Quinn B, Rani KJ, Rapidis PA, Ratoff PN, Reay NW, Renardy JF, Reucroft S, Rha J, Ridel M, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Royon C, Rubinov P, Ruchti R, Sabirov BM, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schamberger RD, Schellman H, Schieferdecker P, Schmitt C, Schukin A, Schwartzman A, Schwienhorst R, Sengupta S, Shabalina E, Shary V, Shephard WD, Shpakov D, Sidwell RA, Simak V, Sirotenko V, Skow D, Slattery P, Smith RP, Smolek K, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Song Y, Sonnenschein L, Sopczak A, Sorín V, Sosebee M, Soustruznik K, Souza M, Stanton NR, Stark J, Steele J, Steinbrück G, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strovink M, Stutte L, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tentindo-Repond S, Thomas E, Thooris B, Tomoto M, Toole T, Torborg J, Towers S, Trefzger T, Trincaz-Duvoid S, Trippe TG, Tuchming B, Tully C, Turcot AS, Tuts PM, Uvarov L, Uvarov S, Uzunyan S, Vachon B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev I, Vaupel M, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vlimant JR, Von Toerne E, Vreeswijk M, Vu Anh T, Wahl HD, Walker R, Wallace N, Wang ZM, Warchol J, Warsinsky M, Watts G, Wayne M, Weber M, Weerts H, Wegner M, White A, White V, Whiteson D, Wicke D, Wijngaarden DA, Wilson GW, Wimpenny SJ, Wittlin J, Wlodek T, Wobisch M, Womersley J, Wood DR, Wu Z, Wyatt TR, Xu Q, Xuan N, Yamada R, Yasuda T, Yatsunenko YA, Yen Y, Yip K, Youn SW, Yu J, Yurkewicz A, Zabi A, Zatserklyaniy A, Zdrazil M, Zeitnitz C, Zhang B, Zhang D, Zhang X, Zhao T, Zhao Z, Zheng H, Zhou B, Zhou Z, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zitoun R, Zutshi V, Zverev EG, Zylberstejn A. Observation and properties of the X(3872) decaying to J/psipi(+)pi(-) in pp collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2004; 93:162002. [PMID: 15524981 DOI: 10.1103/physrevlett.93.162002] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2004] [Indexed: 05/24/2023]
Abstract
We report the observation of the X(3872) in the J/psipi(+)pi(-) channel, with J/psi decaying to mu(+)mu(-), in pp collisions at sqrt[s]=1.96 TeV. Using approximately 230 pb(-1) of data collected with the Run II D0 detector, we observe 522+/-100 X(3872) candidates. The mass difference between the X(3872) state and the J/psi is measured to be 774.9+/-3.1(stat)+/-3.0(syst) MeV/c(2). We have investigated the production and decay characteristics of the X(3872) and find them to be similar to those of the psi(2S) state.
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Abazov VM, Abbott B, Abolins M, Acharya BS, Adams DL, Adams M, Adams T, Agelou M, Agram JL, Ahmed SN, Ahn SH, Alexeev GD, Alkhazov G, Alton A, Alverson G, Alves GA, Anderson S, Andrieu B, Arnoud Y, Askew A, Asman B, Autermann C, Avila C, Babukhadia L, Bacon TC, Baden A, Baffioni S, Baldin B, Balm PW, Banerjee S, Barberis E, Bargassa P, Baringer P, Barnes C, Barreto J, Bartlett JF, Bassler U, Bauer D, Bean A, Beauceron S, Beaudette F, Begel M, Beri SB, Bernardi G, Bertram I, Besançon M, Besson A, Beuselinck R, Bezzubov VA, Bhat PC, Bhatnagar V, Bhattacharjee M, Binder M, Bischoff A, Black KM, Blackler I, Blazey G, Blekman F, Bloch D, Blumenschein U, Boehnlein A, Bolton TA, Bonamy P, Borcherding F, Borissov G, Bos K, Bose T, Boswell C, Brandt A, Briskin G, Brock R, Brooijmans G, Bross A, Buchholz D, Buehler M, Buescher V, Burdin S, Burnett TH, Busato E, Butler JM, Bystricky J, Canelli F, Carvalho W, Casey BCK, Casey D, Cason NM, Castilla-Valdez H, Chakrabarti S, Chakraborty D, Chan KM, Chandra A, Chapin D, Charles F, Cheu E, Chevalier L, Cho DK, Choi S, Chopra S, Christiansen T, Christofek L, Claes D, Clark AR, Clément C, Coadou Y, Colling DJ, Coney L, Connolly B, Cooper WE, Coppage D, Corcoran M, Coss J, Cothenet A, Cousinou MC, Crépé-Renaudin S, Cristetiu M, Cummings MAC, Cutts D, da Motta H, Davies B, Davies G, Davis GA, De K, de Jong P, de Jong SJ, De La Cruz-Burelo E, De Oliveira Martins C, Dean S, Del Signore K, Déliot F, Delsart PA, Demarteau M, Demina R, Demine P, Denisov D, Denisov SP, Desai S, Diehl HT, Diesburg M, Doidge M, Dong H, Doulas S, Duflot L, Dugad SR, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Edwards T, Ellison J, Elmsheuser J, Eltzroth JT, Elvira VD, Eno S, Ermolov P, Eroshin OV, Estrada J, Evans D, Evans H, Evdokimov A, Evdokimov VN, Fast J, Fatakia SN, Fein D, Feligioni L, Ferbel T, Fiedler F, Filthaut F, Fisk HE, Fleuret F, Fortner M, Fox H, Freeman W, Fu S, Fuess S, Galea CF, Gallas E, Galyaev E, Gao M, Garcia C, Garcia-Bellido A, Gardner J, Gavrilov V, Gelé D, Gelhaus R, Genser K, Gerber CE, Gershtein Y, Geurkov G, Ginther G, Goldmann K, Golling T, Gómez B, Gounder K, Goussiou A, Graham G, Grannis PD, Greder S, Green JA, Greenlee H, Greenwood ZD, Gregores EM, Grinstein S, Grivaz JF, Groer L, Grünendahl S, Grünewald MW, Gu W, Gurzhiev SN, Gutierrez G, Gutierrez P, Haas A, Hadley NJ, Haggerty H, Hagopian S, Hall I, Hall RE, Han C, Han L, Hanagaki K, Hanlet P, Harder K, Hauptman JM, Hauser R, Hays C, Hays J, Hebert C, Hedin D, Heinmiller JM, Heinson AP, Heintz U, Hensel C, Hesketh G, Hildreth MD, Hirosky R, Hobbs JD, Hoeneisen B, Hohlfeld M, Hong SJ, Hooper R, Hou S, Hu Y, Huang J, Huang Y, Iashvili I, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jain S, Jain V, Jakobs K, Jenkins A, Jesik R, Jiang Y, Johns K, Johnson M, Johnson P, Jonckheere A, Jonsson P, Jöstlein H, Juste A, Kado MM, Käfer D, Kahl W, Kahn S, Kajfasz E, Kalinin AM, Kalk J, Karmanov D, Kasper J, Kau D, Ke Z, Kehoe R, Kermiche S, Kesisoglou S, Khanov A, Kharchilava A, Kharzheev YM, Kim KH, Klima B, Klute M, Kohli JM, Kopal M, Korablev V, Kotcher J, Kothari B, Kotwal AV, Koubarovsky A, Kouchner A, Kouznetsov O, Kozelov AV, Kozminski J, Krane J, Krishnaswamy MR, Krzywdzinski S, Kubantsev M, Kuleshov S, Kulik Y, Kunori S, Kupco A, Kurca T, Kuznetsov VE, Lager S, Lahrichi N, Landsberg G, Lazoflores J, Le Bihan AC, Lebrun P, Lee SW, Lee WM, Leflat A, Leggett C, Lehner F, Leonidopoulos C, Lewis P, Li J, Li QZ, Li X, Lima JGR, Lincoln D, Linn SL, Linnemann J, Lipton R, Lobo L, Lobodenko A, Lokajicek M, Lounis A, Lu J, Lubatti HJ, Lucotte A, Lueking L, Luo C, Lynker M, Lyon AL, Maciel AKA, Madaras RJ, Magnan AM, Maity M, Mal PK, Malik S, Malyshev VL, Manankov V, Mao HS, Maravin Y, Marshall T, Martens M, Martin MI, Mattingly SEK, Mayorov AA, McCarthy R, McCroskey R, McMahon T, Meder D, Melanson HL, Melnitchouk A, Meng X, Merkin M, Merritt KW, Meyer A, Miao C, Miettinen H, Mihalcea D, Mishra CS, Mitrevski J, Mokhov N, Molina J, Mondal NK, Montgomery HE, Moore RW, Mostafa M, Muanza GS, Mulders M, Mutaf YD, Nagy E, Nang F, Narain M, Narasimham VS, Naumann NA, Neal HA, Negret JP, Nelson S, Neustroev P, Noeding C, Nomerotski A, Novaes SF, Nunnemann T, Nurse E, O'Dell V, O'Neil DC, Oguri V, Oliveira N, Olivier B, Oshima N, Otero y Garzón GJ, Padley P, Papageorgiou K, Parashar N, Park J, Park SK, Parsons J, Partridge R, Parua N, Patwa A, Perea PM, Perez E, Peters O, Pétroff P, Petteni M, Phaf L, Piegaia R, Podesta-Lerma PLM, Podstavkov VM, Pope BG, Popkov E, Prado da Silva WL, Prosper HB, Protopopescu S, Przybycien MB, Qian J, Quadt A, Quinn B, Rani KJ, Rapidis PA, Ratoff PN, Reay NW, Renardy JF, Reucroft S, Rha J, Ridel M, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Royon C, Rubinov P, Ruchti R, Sabirov BM, Sajot G, Sánchez-Hernández A, Sanders MP, Santoro A, Savage G, Sawyer L, Scanlon T, Schamberger RD, Schellman H, Schieferdecker P, Schmitt C, Schukin A, Schwartzman A, Schwienhorst R, Sengupta S, Shabalina E, Shary V, Shephard WD, Shpakov D, Sidwell RA, Simak V, Sirotenko V, Skow D, Slattery P, Smith RP, Smolek K, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song X, Song Y, Sonnenschein L, Sopczak A, Sorín V, Sosebee M, Soustruznik K, Souza M, Stanton NR, Stark J, Steele J, Steinbrück G, Stevenson K, Stolin V, Stone A, Stoyanova DA, Strandberg J, Strang MA, Strauss M, Ströhmer R, Strovink M, Stutte L, Sznajder A, Talby M, Tamburello P, Taylor W, Telford P, Temple J, Tentindo-Repond S, Thomas E, Thooris B, Tomoto M, Toole T, Torborg J, Towers S, Trefzger T, Trincaz-Duvoid S, Trippe TG, Tuchming B, Turcot AS, Tuts PM, Uvarov L, Uvarov S, Uzunyan S, Vachon B, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev I, Verdier P, Vertogradov LS, Verzocchi M, Villeneuve-Seguier F, Vlimant JR, Von Toerne E, Vreeswijk M, Vu Anh T, Wahl HD, Walker R, Wallace N, Wang ZM, Warchol J, Warsinsky M, Watts G, Wayne M, Weber M, Weerts H, Wegner M, White A, White V, Whiteson D, Wicke D, Wijngaarden DA, Wilson GW, Wimpenny SJ, Wittlin J, Wlodek T, Wobisch M, Womersley J, Wood DR, Wu Z, Wyatt TR, Xu Q, Xuan N, Yamada R, Yasuda T, Yatsunenko YA, Yen Y, Yip K, Youn SW, Yu J, Yurkewicz A, Zabi A, Zatserklyaniy A, Zdrazil M, Zeitnitz C, Zhang B, Zhang D, Zhang X, Zhao T, Zhao Z, Zheng H, Zhou B, Zhou Z, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zitoun R, Zutshi V, Zverev EG, Zylberstejn A. Search for doubly charged higgs boson pair production in the decay to mu(+)mu(+)mu(-)mu(-) in pp collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2004; 93:141801. [PMID: 15524781 DOI: 10.1103/physrevlett.93.141801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2004] [Indexed: 05/24/2023]
Abstract
A search for pair production of doubly charged Higgs bosons in the process pp -->H(++)H(--) -->mu(+)mu(+)mu(-)mu(-) is performed with the D0 run II detector at the Fermilab Tevatron. The analysis is based on a sample of inclusive dimuon data collected at an energy of sqrt[s]=1.96 TeV, corresponding to an integrated luminosity of 113 pb(-1). In the absence of a signal, 95% confidence level mass limits of M(H(+/-+/-)(L))>118.4 GeV/c(2) and M(H(+/-+/-)(R))>98.2 GeV/c(2) are set for left-handed and right-handed doubly charged Higgs bosons, respectively, assuming 100% branching into muon pairs.
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Kleinman LI, Daum PH, Lee YN, Nunnermacker LJ, Springston SR, Weinstein-Lloyd J, Hyde P, Doskey P, Rudolph J, Fast J, Berkowitz C. Photochemical age determinations in the Phoenix metropolitan area. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002621] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Bornheim A, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Jaffe DE, Masek G, Paar HP, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ferguson T, Vogel H, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DYJ, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Savinov V, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Pavlunin V, Shibata EI, Shipsey IPJ, Cronin-Hennessy D, Lyon AL, Thorndike EH, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z. Search for charmless B --> VV decays. PHYSICAL REVIEW LETTERS 2002; 88:021802. [PMID: 11801004 DOI: 10.1103/physrevlett.88.021802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2001] [Indexed: 05/23/2023]
Abstract
We have studied two-body charmless decays of the B meson into the final states rho(0)rho(0), K(*0)rho(0), K(*0)K(*0), K(*0)K(*0), K(*+)rho(0), K(*+)K(*0), and K(*+)K(*-) using only decay modes with charged daughter particles. Using 9.7x10(6) BB pairs collected with the CLEO detector, we place 90% confidence level upper limits on the branching fractions (1.4-14.1)x10(-5), depending on final state and polarization.
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Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DYJ, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, O’Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Savinov V, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IPJ, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Boulahouache C, Bukin K, Dambasuren E, Majumder G, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Bornheim A, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Jaffe DE, Mahapatra R, Masek G, Paar HP, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ferguson T, Vogel H. Search for the decayB+→D*+KS0. Int J Clin Exp Med 2001. [DOI: 10.1103/physrevd.64.077501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Fast J, Håkansson M, Muranyi A, Gippert GP, Thulin E, Evenäs J, Svensson LA, Linse S. Symmetrical stabilization of bound Ca2+ ions in a cooperative pair of EF-hands through hydrogen bonding of coordinating water molecules in calbindin D(9k). Biochemistry 2001; 40:9887-95. [PMID: 11502182 DOI: 10.1021/bi010551h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Water molecules are found to complete the Ca2+ coordination sphere when a protein fails to provide enough ligating oxygens. Hydrogen bonding of these water molecules to the protein backbone or side chains may contribute favorably to the Ca2+ affinity, as suggested in an earlier study of two calbindin D(9k) mutants [E60D and E60Q; Linse et al. (1994) Biochemistry 33, 12478-12486]. To investigate the generality of this conclusion, another side chain, Gln 22, which hydrogen bonds to a Ca2+-coordinating water molecule in calbindin D(9k), was mutated. Two calbindin D(9k) mutants, (Q22E+P43M) and (Q22N+P43M), were constructed to examine the interaction between Gln 22 and the water molecule in the C-terminal calcium binding site II. Shortening of the side chain, as in (Q22N+P43M), reduces the affinity of binding two calcium ions by a factor of 18 at low ionic strength, whereas introduction of a negative charge, as in (Q22E+P43M), leads to a 12-fold reduction. In 0.15 M KCl, a 7-fold reduction in affinity was observed for both mutants. The cooperativity of Ca2+ binding increases for (Q22E+P43M), while it decreases for (Q22N+P43M). The rates of Ca2+ dissociation are 5.5-fold higher for the double mutants than for P43M at low ionic strength. For both mutants, reduced strength of hydrogen bonding to calcium-coordinating water molecules is a likely explanation for the observed effects on Ca2+ affinity and dissociation. In the apo forms, the (Q22E+P43M) mutant has lower stability toward urea denaturation than (Q22N+P43M) and P43M. 2D (1)H NMR and crystallographic experiments suggest that the structure of (Q22E+P43M) and (Q22N+P43M) is unchanged relative to P43M, except for local perturbations in the loop regions.
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Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Park W, Thorndike EH, Jessop CP, Savinov V. Bounds on the CP asymmetry in b --> sgamma decays. PHYSICAL REVIEW LETTERS 2001; 86:5661-5665. [PMID: 11415327 DOI: 10.1103/physrevlett.86.5661] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2000] [Indexed: 05/23/2023]
Abstract
We have measured the CP asymmetry A(CP) identical with[gamma(b-->sgamma)-gammab-->sgamma)]/[gamma(b-->sgamma)+gamma(b-->sgamma)] to be A(CP) = (-0.079+/-0.108+/-0.022) (1.0+/-0.030), implying that, at 90% confidence level, A(CP) lies between -0.27 and +0.10. These limits rule out some extreme non-standard-model predictions, but are consistent with most, as well as with the standard model.
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Jaffe DE, Mahapatra R, Masek G, Paar HP, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ferguson T, Vogel H, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Savinov V, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Park W, Thorndike EH, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Boulahouache C, Bukin K, Dambasuren E, Majumder G, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Bornheim A, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ. Bounds on the CP asymmetry in like-sign dileptons from B(0)B*(0) meson decays. PHYSICAL REVIEW LETTERS 2001; 86:5000-5003. [PMID: 11384405 DOI: 10.1103/physrevlett.86.5000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2001] [Indexed: 05/23/2023]
Abstract
We have measured the charge asymmetry in like-sign dilepton yields from B(0)B*(0) meson decays using the CLEO detector at the Cornell Electron Storage Ring. We find a(0)(ll) identical with[N(l(+)l(+))-N(l(-)l(-))]/[N(l(+)l(+))+N(l(-)l(-))] = +0.013+/-0.050+/-0.005. We combine this result with a previous, independent measurement and obtain Re(epsilon(B))/(1+ the absolute value of epsilon(B)(2)) = +0.0035+/-0.0103+/-0.0015 (uncertainties are statistical and systematic, respectively) for the CP impurity parameter, epsilon(B).
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Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Savinov V, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F. Study of tau decays to six pions and a neutrino. PHYSICAL REVIEW LETTERS 2001; 86:4467-4471. [PMID: 11384261 DOI: 10.1103/physrevlett.86.4467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2000] [Indexed: 05/23/2023]
Abstract
The tau decays to six-pion final states have been studied with the CLEO detector at the Cornell Electron Storage Ring. The measured branching fractions are B(tau(-)-->2pi(-)pi(+)3pi(0)nu(tau)) = (2.2+/-0.3+/-0.4)x10(-4) and B(tau(-)-->3pi(-)2pi(+)pi(0)nu(tau)) = (1.7+/-0.2+/-0.2)x10(-4). A search for substructure in these decays shows that they are saturated by intermediate states with eta or omega mesons. We present the first observation of the decay tau(-)-->2pi(-)pi(+)omega(nu)tau and the branching fraction is measured to be (1.2+/-0.2+/-0.1)x10(-4). The measured branching fractions are in good agreement with the isospin expectations but somewhat below the conserved-vector-current predictions.
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Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Savinov V, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T. Observation of new states decaying into Lambda+(c)pi(-)pi(+). PHYSICAL REVIEW LETTERS 2001; 86:4479-4482. [PMID: 11384263 DOI: 10.1103/physrevlett.86.4479] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2000] [Indexed: 05/23/2023]
Abstract
Using 13.7 fb(-1) of data recorded by the CLEO detector at the Cornell Electron Storage Ring, we investigate the spectrum of charmed baryons which decay into Lambda+(c)pi(-)pi(+) and are more massive than the Lambda+(c)(2625) baryon. We find evidence for two new states: one is broad and has an invariant mass roughly 480 MeV above that of the Lambda+(c) baryon; the other is narrow with an invariant mass of 596+/-1+/-2 MeV above the Lambda+(c) mass.
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Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Bornheim A, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Jaffe DE, Masek G, Paar HP, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ferguson T, Vogel H, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Savinov V, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH. Evidence of New States Decaying into Xi(*)(c)pi. PHYSICAL REVIEW LETTERS 2001; 86:4243-4246. [PMID: 11328145 DOI: 10.1103/physrevlett.86.4243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2000] [Indexed: 05/23/2023]
Abstract
Using 13.7 fb(-1) of data recorded by the CLEO detector at Cornell Electron Storage Ring, we report evidence of two new charmed baryons: one decaying into Xi(0')(c)pi(+) with the subsequent decay Xi(0')(c)-->Xi(0)(c)gamma, and its isospin partner decaying into Xi(+')(c)pi(-) followed by Xi(+')(c)-->Xi(+)(c)gamma. We measure the following mass differences for the two states: M(Xi(0)(c)gammapi(+))-M(Xi(0)(c)) = 318.2+/-1.3+/-2.9 MeV and M(Xi(+)(c)gammapi(-))-M(Xi(+)(c)) = 324.0+/-1.3+/-3.0 MeV. We interpret these new states as the J(P) = 1 / 2(-) Xi(c1) particles, the charmed-strange analogs of the Lambda(+)(c1)(2593).
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Abstract
The structure of calbindin D(9k) with two substitutions was determined by X-ray crystallography at 1.8-A resolution. Unlike wild-type calbindin D(9k), which is a monomeric protein with two EF-hands, the structure of the mutated calbindin D(9k) reveals an intertwined dimer. In the dimer, two EF-hands of the monomers have exchanged places, and thus a 3D domain-swapped dimer has been formed. EF-hand I of molecule A is packed toward EF-hand II of molecule B and vice versa. The formation of a hydrophobic cluster, in a region linking the EF-hands, promotes the conversion of monomers to 3D domain-swapped dimers. We propose a mechanism by which domain swapping takes place via the apo form of calbindin D(9k). Once formed, the calbindin D(9k) dimers are remarkably stable, as with even larger misfolded aggregates like amyloids. Thus calbindin D(9k) dimers cannot be converted to monomers by dilution. However, heating can be used for conversion, indicating high energy barriers separating monomers from dimers.
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Briere RA, Chen GP, Ferguson T, Vogel H, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Savinov V, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Boulahouache C, Bukin K, Dambasuren E, Majumder G, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Bornheim A, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Jaffe DE, Mahapatra R, Masek G, Paar HP, Asner DM, Eppich A, Hill TS, Morrison RJ. Observation of B --> phiK and B --> phiK*. PHYSICAL REVIEW LETTERS 2001; 86:3718-3721. [PMID: 11329307 DOI: 10.1103/physrevlett.86.3718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2001] [Indexed: 05/23/2023]
Abstract
We have studied two-body charmless hadronic decays of B mesons into the final states straight phiK and phiK(*). Using 9.7 million B&Bmacr; pairs collected with the CLEO II detector, we observe the decays B- --> phiK- and B0--> phiK(*0) with the following branching fractions: B(B--->phiK-) = (5.5(+2.1)(-1.8)+/-0.6)x10(-6) and B(B0--> phiK(*0)) = (11.5(+4.5+1.8)(-3.7-1.7))x10(-6). We also see evidence for the decays B0-->phiK0 and B---> phiK(*-). However, since the statistical significance is not overwhelming for these modes, we determine upper limits of <12.3x10(-6) and <22.5x10(-6) ( 90% confidence level), respectively.
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Cronin-Hennessy D, Lyon AL, Thorndike EH, Savinov V, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V. Observation of the Omega(0)(c) Charmed Baryon at CLEO. PHYSICAL REVIEW LETTERS 2001; 86:3730-3734. [PMID: 11329310 DOI: 10.1103/physrevlett.86.3730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2000] [Indexed: 05/23/2023]
Abstract
The CLEO experiment at the CESR collider has used 13.7 fb(-1) of data to search for the production of the Omega(0)(c) (css ground state) in e(+)e(-) collisions at square root of (s) approximately 10.6 GeV. The modes used to study the Omega(0)(c) are Omega(-)pi(+), Omega(-)pi(+)pi(0), Xi-K-pi(+)pi(+), Xi0K-pi(+), and Omega(-)pi(+)pi(+)pi(-). We observe a signal of 40.4+/-9.0(stat) events at a mass of 2694.6+/-2.6(stat)+/-1.9(syst) MeV/c(2), for all modes combined.
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Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Ferguson T, Vogel H, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R. Search for B --> tau(nu) and B --> K(nu)nu. PHYSICAL REVIEW LETTERS 2001; 86:2950-2954. [PMID: 11290080 DOI: 10.1103/physrevlett.86.2950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2000] [Indexed: 05/23/2023]
Abstract
We report results of a search for B-->tau(nu) in a sample of 9.7 x 10(6) charged B meson decays. We exclusively reconstruct the companion B decay to suppress background. We set an upper limit on the branching fraction B(B-->tau(nu))<8.4 x 10(-4) at 90% confidence level. We also establish B(B+/--->K+/-nu(nu))<2.4 x 10(-4) at 90% confidence level.
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Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Mahmood AH, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Menon N, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Kwon Y, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG. Measurement of the relative branching fraction of upsilon(4S) to charged and neutral B-meson pairs. PHYSICAL REVIEW LETTERS 2001; 86:2737-2741. [PMID: 11290027 DOI: 10.1103/physrevlett.86.2737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2000] [Indexed: 05/23/2023]
Abstract
We analyze 9.7x10(6) B_B pairs recorded with the CLEO detector to determine the production ratio of charged to neutral B-meson pairs produced at the Upsilon(4S) resonance. We measure the rates for B0-->J/psiK((*)0) and B+-->J/psiK((*)+) decays and use the world-average B-meson lifetime ratio to extract the relative widths f(+-) / f(00) = gamma(Upsilon(4S)-->B+B-) / gamma(Upsilon(4S)-->B0 B-0)) = 1.04+/-0.07(stat)+/-0.04(syst). With the assumption that f(+-)+f(00) = 1, we obtain f(00) = 0.49+/-0.02(stat)+/-0.01(syst) and f(+-) = 0.51+/-0.02(stat)+/-0.01(syst). This production ratio and its uncertainty apply to all exclusive B-meson branching fractions measured at the Upsilon(4S) resonance.
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Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X. First observation of the decays B(0) --> D(*-)p_p pi+ and B(0) --> D(*-)p_n. PHYSICAL REVIEW LETTERS 2001; 86:2732-2736. [PMID: 11290026 DOI: 10.1103/physrevlett.86.2732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2000] [Indexed: 05/23/2023]
Abstract
We report the first observation of exclusive decays of the type B-->D(*)N_NX, where N is a nucleon. Using a sample of 9.7x10(6)B_B pairs collected with the CLEO detector operating at the Cornell Electron Storage Ring, we measure the branching fractions B(B0-->D(*-)p_p pi(+)) = (6.5(+1.3)(-1.2)+/-1.0)x10(-4) and B(B0-->D(*-)p_n) = (14.5(+3.4)(-3.0)+/-2.7)x10(-4). Antineutrons are identified by their annihilation in the CsI electromagnetic calorimeter.
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Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Nelson HN, Briere RA, Chen GP, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S. Measurement of the lambda(+)(c) lifetime. PHYSICAL REVIEW LETTERS 2001; 86:2232-2236. [PMID: 11289897 DOI: 10.1103/physrevlett.86.2232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2000] [Indexed: 05/23/2023]
Abstract
The Lambda+c lifetime is measured using 9.0 fb(-1) of e+e- annihilation data collected on or just below the Upsilon(4S) resonance with the CLEO II.V detector at CESR. Using an unbinned maximum likelihood fit, the Lambda+c lifetime is measured to be 179.6+/-6.9(stat)+/-4.4(syst) fs. The precision of this colliding beam measurement is comparable to other measurements, which are based on fixed-target experiments, with different systematic uncertainties.
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Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ. First observation of the sigma(*+)(c) baryon and a new measurement of the sigma(*+)(c) mass. PHYSICAL REVIEW LETTERS 2001; 86:1167-1170. [PMID: 11178035 DOI: 10.1103/physrevlett.86.1167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2000] [Indexed: 05/23/2023]
Abstract
Using data recorded with the CLEO II and CLEO II.V detector configurations at the Cornell Electron Storage Rings, we report the first observation and mass measurement of the Sigma(*+)(c) charmed baryon, and an updated measurement of the mass of the Sigma(+)(c) baryon. We find M(Sigma(*+)(c))-M(Lambda(+)(c)) = (231.0+/-1.1+/-2.0) MeV, and M(Sigma(+)(c))-M(Lambda(+)(c)) = (166.4+/-0.2+/-0.3) MeV, where the errors are statistical and systematic, respectively.
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Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J. Study of B Decays to Charmonium States: B-->eta(c)K and B --> chi(c0)K. PHYSICAL REVIEW LETTERS 2001; 86:30-34. [PMID: 11136086 DOI: 10.1103/physrevlett.86.30] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2000] [Indexed: 05/23/2023]
Abstract
In a sample of 9.66x10(6)B&Bmacr; pairs collected with the CLEO detector we make the first observation of B decays to an eta(c) and a kaon. We measure branching fractions B(B+-->eta(c)K+) = (0.69(+0.26)(-0.21)+/-0.08+/-0.20)x10(-3) and B(B degrees -->eta(c)K degrees ) = (1.09(+0.55)(-0.42)+/-0.12+/-0.31)x10(-3), where the first error is statistical, the second is systematic, and the third is from the eta(c) branching fraction uncertainty. From these we extract the eta(c) decay constant in the factorization approximation, f(eta(c)) = 335+/-75 MeV. We also search for B decays to a chi(c0) and a kaon. No evidence for a signal is found and we set 90% C.L. upper limits: B(B+-->chi(c0)K+)<4.8x10(-4) and B(B degrees -->chi(c0)K degrees )<5.0x10(-4).
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Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Ferguson T, Vogel H, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J. Measurements of the mass, total width, and two-photon partial width of the eta(c) meson. PHYSICAL REVIEW LETTERS 2000; 85:3095-3099. [PMID: 11019275 DOI: 10.1103/physrevlett.85.3095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2000] [Indexed: 05/23/2023]
Abstract
Using 13.4 fb(-1) of data collected with the CLEO detector at the Cornell Electron Storage Ring, we have observed 300 events for the two-photon production of ground-state pseudoscalar charmonium in the decay eta(c)-->K(0)(S)K-/+pi(+/-). We have measured the eta(c) mass to be [2980.4+/-2.3 (stat)+/-0.6 (syst)] MeV and its full width as [27.0+/-5.8 (stat)+/-1.4 (syst)] MeV. We have determined the two-photon partial width of the eta(c) meson to be [7.6+/-0.8 (stat)+/-0.4 (syst)+/-2.3 (br)] keV, with the last uncertainty associated with the decay branching fraction.
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