Title: | Observation of CP violation in the B-0 meson system |
Authors: | Aubert, B Boutigny, D Gaillard, JM Hicheur, A Karyotakis, Y Lees, JP Robbe, P Tisserand, V Palano, A Chen, GP Chen, JC Martinez-Vidal, F Pripstein, M Morganti, M Neri, N Paoloni, E Meyer, WT Rama, M Rizzo, G Verkerke, W Brown, D Fabozzi, F Borgland, AW Sandrelli, F Simi, G Triggiani, G Walsh, J Haire, M Roe, NA Rosenberg, EI Judd, D Paick, K Gatto, C Brandt, T Turnbull, L Wagoner, DE Schwierz, R Witherell, M Albert, J Bula, C Elmer, P Lu, C Benkebil, M Lista, L McDonald, KT Priano, C Miftakov, V Romosan, A Schaffner, SF Smith, AJS Spaan, B Tumanov, A Yellin, S Varnes, EW Paolucci, P Cavoto, G Gritsan, AV Kluth, S del Re, D Faccini, R Ferrarotto, F Ferroni, F Fratini, K Ronan, MT Wilden, L Piccolo, D Lamanna, E Leonardi, E Beringer, J Davis, CL Grosdidier, G Mazzoni, MA Morganti, S Piredda, G Tehrani, FS Serra, M Dubitzky, RS Voena, C Christ, S Behr, L Waldi, R Allison, J Shelkov, VG Hast, C Adye, T Wang, P Franek, B Sciacca, C Geddes, NI Gopal, GP Xella, SM Aleksan, R De Domenico, G Barlow, RJ Bernard, D Emery, S Blouw, J Gaidot, A LoSecco, JM Ganzhur, SF Telnov, AV Dorfan, DE Giraud, PF de Monchenault, GH Kozanecki, W Boyd, JT Langer, M London, GW Bonneaud, GR Lynch, G Arisaka, K Mayer, B Serfass, B Vasseur, G Yeche, C Zito, M Eisner, AM Forti, AC Wenzel, WA Copty, N Mallik, U Purohit, MV Singh, H Hocker, A Brochard, F Yumiceva, FX Adam, I Anthony, PL Aston, D Fullwood, J Baird, K Marker, CE Berger, JP Frey, A Bloom, E Zisman, MS Lacker, HM Boyarski, AM Cohen-Tanugi, J Bulos, F Calderini, G Rahatlou, S Hart, PA Claus, R Convery, MR Coupal, DP Coward, DH Dorfan, J Grillo, AA Laplace, S Doser, M Dunwoodie, W Ferrag, S Alsmiller, JRG Jackson, F Bright-Thomas, PG Field, RC Glanzman, T Godfrey, GL Gowdy, S Grosso, P Himel, T Lepeltier, V Hryn'ova, T Gabriel, TA Grothe, M Lafferty, GD Huffer, ME Yushkov, AN Innes, WR Jessop, C Harrison, TJ Kelsey, MH Kim, P Kocian, ML Handler, T Lutz, AM Langenegger, U Robutti, E Leith, DWGS Luitz, S Heusch, CA Roussot, E Luth, V Lynch, HL Marsiske, H Brau, J Menke, S Hawkes, CM Plaszczynski, S Abrams, GS Messner, R Moffeit, KC Mount, R Muller, DR O'Grady, CP Breon, AB Frey, R Johnson, RP Perl, M Petrak, S Quinn, H Savvas, N Schune, MH Ratcliff, BN Robertson, SH Knowles, DJ Rochester, LS Iwasaki, M Roodman, A Schietinger, T T'Jampens, S Schindler, RH Kroeger, W Simopoulos, ET Schwiening, J Trincaz-Duvoid, S Seeman, JT Serbo, VV Hauke, A Snyder, A Soha, A Spanier, SM O'Neale, SW Stelzer, J Thiebaux, C Kolomensky, YG Su, D Sullivan, MK Groysman, Y Sinev, NB Lockman, WS Tanaka, HA Va'vra, J Wagner, SR Weinstein, AJR Wienands, U Wisniewski, WJ Weatherall, JH Wright, DH Vasileiadis, G Strom, D Penny, RC Harton, JL Young, CC Burchat, PR Pulliam, T Cheng, CH Kirkby, D Meyer, TI Farbin, A Roat, C McGrath, P Henderson, R Bugg, W Verderi, M Valassi, A Cohn, H Weidemann, AW Watson, AT Izen, JM Zhu, YS Jawahery, A Ahsan, A Kitayama, I Lou, XC Turcotte, M Bianchi, F Bona, M Qi, ND Anjomshoaa, A Di Girolamo, B Gamba, D Smol, A Colecchia, F Lillard, V Zanin, D Watson, NK Sadrozinski, H Bosisio, L Della Ricca, G Lanceri, L Wormser, G Pompili, A Bernet, R Dal Corso, F Poropat, P Olsen, J Vuagnin, G Panvini, RS Brown, CM De Silva, A Kowalewski, R Schalk, T Deppermann, T Bionta, RM Kuznetsova, N Roney, JM Band, HR Raven, G Khan, A Charles, E Dasu, S Di Lodovico, F Eichenbaum, AM Hu, H Johnson, JR Meyer, AB Liu, R Brigljevic, V Schmitz, RE Santroni, A Nielsen, J Goetzen, K Lavin, D Pan, Y Prepost, R Scott, IJ Dorigo, A Sekula, SJ von Wimmersperg-Toeller, JH Wu, SL Lange, D Roberts, DA Yu, Z Zobernig, H Schumm, BA Kordich, TMB Best, D Galeazzi, F Neal, H Koch, H BABAR Collaboration Krug, J Kunze, M Skovpen, YL Mugge, M Lewandowski, B Peters, K Schmuecker, H Margoni, M Steinke, M Seiden, A Muheim, F Andress, JC Barlow, NR Bhimji, W Schieck, JR Chevalier, N Shi, X Clark, PJ Michelon, G Cottingham, WN De Groot, N Dyce, N Foster, B McFall, JD Playfer, S Turri, M Blaylock, G Wallom, D Wilson, FF Maly, E van Bibber, K Abe, K Hearty, C Mattison, TS McKenna, JA Thiessen, D Jolly, S McKemey, AK Dallapiccola, C Brown, DN McMahon, TR Tinslay, J Walkowiak, W Wenaus, TJ Blinov, VE Bukin, AD Bukin, DA Buzykaev, AR Golubev, VB Ivanchenko, VN Flood, K Morandin, M Korol, AA Kravchenko, EA Swain, JE Onuchin, AP Krishnamurthy, M Salnikov, AA Williams, DC Serednyakov, SI Wilson, MG Chen, E Wagner, DL Kral, JF Eigen, G Dubois-Felsmann, GP Dvoretskii, A Hitlin, DG Falbo, M Wright, DM Metzler, S Oyang, J Porter, FC Posocco, M Ryd, A Hertzbach, SS Samuel, A Weaver, M Yang, S Reinertsen, PL Zhu, RY Devmal, S Jacobsen, RG Borean, C Rotondo, M Geld, TL Jayatilleke, S Kofler, R Mancinelli, G Meadows, BT Sokoloff, MD Barillari, T Bloom, P Dima, MO Stugu, B Simonetto, F Buchanan, C Fahey, S Bozzi, C Moore, TB Ford, WT Johnson, DR Nauenberg, U Olivas, A Park, H Rankin, P Stroili, R Roy, J Sen, S Wuest, CR Smith, JG Morii, M Abbott, B Dittongo, S van Hoek, WC Folegani, M Piemontese, L Levy, SL Lankford, AJ Treadwell, E Anulli, F Baldini-Ferroli, R Carroll, M Staengle, H Button-Shafer, J Calcaterra, A de Sangro, R Falciai, D Torassa, E Finocchiaro, G Patteri, P Peruzzi, IM Mandelkern, M Piccolo, M Xie, Y Sharma, V Fry, JR Zallo, A Bagnasco, S Momayezi, M Cahn, RN Buzzo, A Contri, R Crosetti, G Fabbricatore, P Farinon, S McMahon, S Brose, J Lo Vetere, M Gabathuler, E Voci, C Macri, M Monge, MR Musenich, R Pallavicini, M Clark, AR Parodi, R Passaggio, S Pastore, FC Willocq, S Patrignani, C Ricciardi, S Stoker, DP Gamet, R Pia, MG George, M Kay, M Soffer, A Payne, DJ Sloane, RJ Touramanis, C Brau, B Benayoun, M Chun, S Kadel, RW Aspinwall, ML Bowerman, DA Dauncey, PD Egede, U Eschrich, E Toki, WH Gunawardane, NJW Nash, JA Muller-Pfefferkorn, R Cowan, R Sanders, P Smith, D Branson, JG Azzopardi, DE Kadyk, J Back, JJ Dixon, P Harrison, PF Wilson, RJ Cochran, J Potter, RJL Sciolla, G Shorthouse, HW Strother, P Vidal, PB Williams, MI MacFarlane, DB Cowan, G George, S Kerth, LT Briand, H Green, MG Zhang, J Taylor, F Kurup, A Yamamoto, RK LeClerc, C Bartoldus, R Milek, M Patel, PM Trischuk, J Chauveau, J Colberg, T Campagnari, C Lanni, F Palombo, F Bauer, JM Booke, M Cremaldi, L Gill, MS Eschenburg, V Kroeger, R David, P Levi, ME Reidy, J Dahlinger, G Sanders, DA Dahmes, B Summers, DJ Martin, JP Nief, JY Dignan, T Seitz, R de la Vaissiere, C Taras, P Zacek, V Nicholson, H Sutton, CS Dickopp, M Liu, T Cartaro, C Rong, G Cavallo, N Hamilton, R Del Buono, L De Nardo, G Hamon, O Long, O Salvatore, F Le Diberder, F Leruste, P Oddone, PJ Crawley, HB Otto, S Lory, J Roos, L Stark, J Versille, S Manfredi, PF Prell, S Re, V Speziali, V Lu, A Frank, ED Fischer, RA Gladney, L Schubert, KR Guo, QH Perazzo, A Panetta, JH Scott, I Angelini, C Batignani, G Bettarini, S Bondioli, M Carpinelli, M Lamsa, J Richman, JD Forti, F Telnov, VI Giorgi, MA Vaitsas, G Lusiani, A |
Issue Date: | 2001 |
Publisher: | American Physical Society |
Citation: | Physical Review Letters, 87(9): Artn 091801, Aug 2001 |
Abstract: | We present an updated measurement of time-dependent CP-violating asymmetries in neutral
B decays with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. This result
uses an additional sample of T(4S) decays collected in 2001, bringing the data available to 32 million BB pairs. We select events in which one neutral B meson is fully reconstructed in a final state containing charmonium and the flavor of the other neutral B meson is determined from its decay products. The amplitude of the CP-violating asymmetry, which in the Standard Model is proportional to sin2β, is derived from the decay time distributions in such events. The result sin2β = 0.59±0.14 (stat)±0.05 (syst) establishes CP violation in the B0 meson system. We also determine |λ| = 0.93±0.09 (stat)± 0.03 (syst), consistent with no direct CP violation. |
Description: | This is the pre-print version of the Article. The official published version can be accessed from the link below. Copyright @ 2001 APS. |
URI: | http://prl.aps.org/abstract/PRL/v87/i9/e091801 http://bura.brunel.ac.uk/handle/2438/7517 |
DOI: | http://dx.doi.org/10.1103/PhysRevLett.87.091801 |
ISSN: | 0031-9007 |
Appears in Collections: | Electronic and Electrical Engineering Dept of Electronic and Electrical Engineering Research Papers
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