Bounds on the CP asymmetry in like-sign dileptons from B-0(B)over-bar(0) meson decays

Authors
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, 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 Llee, 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 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
Citation
De. Jaffe et al., Bounds on the CP asymmetry in like-sign dileptons from B-0(B)over-bar(0) meson decays, PHYS REV L, 86(22), 2001, pp. 5000-5003
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
86
Issue
22
Year of publication
2001
Pages
5000 - 5003
Database
ISI
SICI code
0031-9007(20010528)86:22<5000:BOTCAI>2.0.ZU;2-8
Abstract
We have measured the charge asymmetry in like-sign dilepton yields from B-0 (B) over bar (0) meson decays using the CLEO detector at the Cornell Electr on Storage Ring. We find a(ll)(0) drop [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 + /epsil on (B)/(2))= +0.0035 +/- 0.0103 +/- 0.0015 (uncertainties are statistical a nd systematic, respectively) for the CP impunity parameter, epsilon (B).