Improved measurement of Vub with inclusive semileptonic B decays. Academic Article uri icon


  • We report a new measurement of the Cabibbo-Kobayashi-Maskawa parameter Vub made with a sample of 9.7 x 10(6) BB- events collected with the CLEO II detector. Using heavy quark theory, we combine the observed yield of leptons from semileptonic B decay in the end-point momentum interval 2.2-2.6 GeV/c with recent CLEO II data on B-->X(s)gamma to find Vub = (4.08+/-0.34+/-0.44+/-0.16+/-0.24)x10(-3), where the first two uncertainties are experimental and the last two are from theory.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Bornheim, A., Lipeles, E., Pappas, S. P., Shapiro, A., Sun, W. M., Weinstein, A. J., ... McGee, S.

complete list of authors

  • Bornheim, A||Lipeles, E||Pappas, SP||Shapiro, A||Sun, WM||Weinstein, AJ||Masek, G||Paar, HP||Mahapatra, R||Morrison, RJ||Briere, RA||Chen, GP||Ferguson, T||Tatishvili, G||Vogel, H||Adam, NE||Alexander, JP||Bebek, C||Berkelman, K||Blanc, F||Boisvert, V||Cassel, DG||Drell, PS||Duboscq, JE||Ecklund, KM||Ehrlich, R||Gibbons, L||Gittelman, B||Gray, SW||Hartill, DL||Heltsley, BK||Hsu, L||Jones, CD||Kandaswamy, J||Kreinick, DL||Magerkurth, A||Mahlke-Kr├╝ger, H||Meyer, TO||Mistry, NB||Nordberg, E||Palmer, M||Patterson, JR||Peterson, D||Pivarski, J||Riley, D||Sadoff, AJ||Schwarthoff, H||Shepherd, MR||Thayer, JG||Urner, D||Valant-Spaight, B||Viehhauser, G||Warburton, A||Weinberger, M||Athar, SB||Avery, P||Prescott, C||Stoeck, H||Yelton, J||Brandenburg, G||Ershov, A||Kim, DY-J||Wilson, R||Benslama, K||Eisenstein, BI||Ernst, J||Gollin, GD||Hans, RM||Karliner, I||Lowrey, N||Marsh, MA||Plager, C||Sedlack, C||Selen, M||Thaler, JJ||Williams, J||Edwards, KW||Ammar, R||Besson, D||Zhao, X||Anderson, S||Frolov, VV||Kubota, Y||Le

publication date

  • January 1, 2002 11:11 AM