Speaker
Michael Sigamani
(Dipartimento di Fisica G. Marconi-Universita di Roma I 'La Sapie)
Description
We present partial branching fractions for inclusive charmless semi-leptonic B decays anti-B -> X_u l anti-nu, and the determination of the CKM matrix element |V_{ub}|. The analysis is based on a sample of Upsilon(4S) decays into B anti-B pairs collected with the BABAR detector at the PEP-II e+ e- storage rings. We select events using either the invariant mass M_X of the hadronic system, the invariant mass squared, q^2 of the lepton and neutrino pair, the kinematic variable P_+, the lepton energy E_l, or one of their combinations. We determine partial branching fractions in limited regions of phase space. Corresponding values of |V_{ub}| are extracted using several theoretical calculations.
Primary authors
Michael Roney
(BABAR/Univ. of Victoria)
TBD TBD
(BABAR)
