Measurement of the relative branching fraction of upsilon(4S) to charged and neutral B-meson pairs.
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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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Alexander, J. P., Baker, R., Bebek, C., Berger, B. E., Berkelman, K., Blanc, F., ... CLEO Collaboration.
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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
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49 Mathematical Sciences
4902 Mathematical Physics
51 Physical Sciences
5106 Nuclear And Plasma Physics
5107 Particle And High Energy Physics
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http://dx.doi.org/10.1103/physrevlett.86.2737