par Acosta, Darin E.;De Lentdecker, Gilles ; [et al.]
Référence Physical review. D, Particles, fields, gravitation, and cosmology, 71, 5, page (1-9), 051103
Publication Publié, 2005
Article révisé par les pairs
Résumé : Using 180 pb -1 of data collected with the CDF II detector at the Tevatron, we measure the first two moments of the hadronic invariant mass-squared distribution in charmed semileptonic B decays. From these we determine the nonperturbative Heavy Quark Effective Theory parameters Λ and λ 1 used to relate the B meson semileptonic branching ratio to the CKM matrix element