PS01 Heavy Flavour Physics
|V cb |, |V ub |, and HQET at CLEO
Floyd R. Newman Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, New York, 14853,
Accepted: 13 November 2003
Published online: 2 December 2003
I report results from the CLEO collaboration on semileptonic B decays, highlighting measurements of the Cabibbo-Kobayashi-Maskawa matrix elements |V cb | and |V ub |. I describe the techniques used to obtain the recent improvements in precision for these measurements, including the use of the b→ s γ photon spectrum to reduce hadronic uncertainties in semileptonic B decays. I also report new measurements of |V cb | using the inclusive semileptonic branching fraction and of |V ub | through study of the q 2 dependence of B→πℓν and B→ρℓν.
PACS: 12.15.Hh Determination of Kobayashi-Maskawa matrix elements – 13.20.He Decays of bottom mesons
© Società Italiana di Fisica, Springer-Verlag, 2004