Bounds on the CP asymmetry in b --> sgamma decays. Academic Article uri icon

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.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Coan, T. E., Fadeyev, V., Maravin, Y., Narsky, I., Stroynowski, R., Ye, J., ... CLEO Collaboration.

citation count

  • 48

complete list of authors

  • 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||W├╝rthwein, 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

publication date

  • June 2001