Measurement of theB-meson inclusive semileptonic branching fraction and electron-energy moments Academic Article uri icon

abstract

  • We report a new measurement of the B-meson semileptonic decay momentum spectrum that has been made with a sample of 9.4 [Formula Presented] of [Formula Presented] data collected with the CLEO II detector at the [Formula Presented] resonance. Electrons from primary semileptonic decays and secondary charm decays were separated by using charge and angular correlations in [Formula Presented] events with a high-momentum lepton and an additional electron. We determined the semileptonic branching fraction to be [Formula Presented] from the normalization of the electron-energy spectrum. We also measured the moments of the electron-energy spectrum with minimum energies from 0.6 to 1.5 GeV. 2004 The American Physical Society.

published proceedings

  • Physical Review D

author list (cited authors)

  • Mahmood, A. H., Csorna, S. E., Bonvicini, G., Cinabro, D., Dubrovin, M., Bornheim, A., ... Zhang, K.

complete list of authors

  • Mahmood, AH||Csorna, SE||Bonvicini, G||Cinabro, D||Dubrovin, M||Bornheim, A||Lipeles, E||Pappas, SP||Shapiro, A||Weinstein, AJ||Briere, RA||Chen, GP||Ferguson, T||Tatishvili, G||Vogel, H||Watkins, ME||Adam, NE||Alexander, JP||Berkelman, K||Boisvert, V||Cassel, DG||Duboscq, JE||Ecklund, KM||Ehrlich, R||Galik, RS||Gibbons, L||Gittelman, B||Gray, SW||Hartill, DL||Heltsley, BK||Hsu, L||Jones, CD||Kandaswamy, J||Kreinick, DL||Kuznetsov, VE||Magerkurth, A||Mahlke-Kr├╝ger, H||Meyer, TO||Patterson, JR||Pedlar, TK||Peterson, D||Pivarski, J||Riley, D||Sadoff, AJ||Schwarthoff, H||Shepherd, MR||Sun, WM||Thayer, JG||Urner, D||Wilksen, T||Weinberger, M||Athar, SB||Avery, P||Breva-Newell, L||Potlia, V||Stoeck, H||Yelton, J||Eisenstein, BI||Gollin, GD||Karliner, I||Lowrey, N||Naik, P||Sedlack, C||Selen, M||Thaler, JJ||Williams, J||Edwards, KW||Besson, D||Gao, KY||Gong, DT||Kubota, Y||Li, SZ||Poling, R||Scott, AW||Smith, A||Stepaniak, CJ||Urheim, J||Metreveli, Z||Seth, KK||Tomaradze, A||Zweber, P||Ernst, J||Arms, K||Eckhart,

publication date

  • January 1, 2004 11:11 AM