https://doi.org/10.1140/epjcd/s2003-03-108-3
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,
Received:
1
November
2003
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
