Semileptonic B Decays at BABAR

by U. Langenegger (SLAC)

Wednesday 23 Apr 2003, 17:00 → 18:00 Europe/Zurich

CERN

We present results on semileptonic B decays obtained with the BABAR detector. The large data set accumulated at the PEP-II asymmetric-energy B-Factory allows a new measurement technique, where the hadronic decay of one B meson is fully reconstructed and the semileptonic decay of the recoiling B meson is studied. Traditional analysis techniques of inclusive and exclusive B decays complement this approach with very high statistics data samples. These measurements play an important role in the tests of the description of CP violation in the Standard Model: The determinations of the Cabibbo-Kobayashi-Maskawa matrix elements |Vcb| and |Vub| provide constraints on the unitarity of the CKM triangle. Furthermore, the experimental measurement of parameters of Heavy Quark Effective Theory test the consistency of the theoretical description of semileptonic B decays.


Information : http://dpnc.unige.ch/seminaire/annonce.html

Organiser(s): E. Cortina-Gil

Note: UNIVERSITE DE GENEVE
Ecole de physique, Stückelberg Auditorium
Département de physique nucléaire et corspusculaire
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