|Vcb|, |Vub|, and Hqet at Cleo
High Energy Physics - Experiment
2019-08-14 v1
Abstract
I report results from the CLEO collaboration on semileptonic B decays, highlighting measurements of the Cabibbo-Kobayashi-Maskawa matrix elements Vcb and Vub. I describe the techniques used to obtain the recent improvements in precision for these measurements, including the use of the b -> s gamma photon spectrum to reduce hadronic uncertainties in semileptonic B decays. I also report new measurements of Vcb using the inclusive semileptonic branching fraction BF(B -> X e nu) and of Vub through study of the q^2 dependence of B -> pi l nu and B -> rho l nu.
Cite
@article{arxiv.hep-ex/0312053,
title = {|Vcb|, |Vub|, and Hqet at Cleo},
author = {Karl M. Ecklund},
journal= {arXiv preprint arXiv:hep-ex/0312053},
year = {2019}
}
Comments
3 pages, 3 figures, uses svjour.cls, submitted to Proceedings of EPS 2003