CLEO Results: B Decays
Abstract
Measurements of many Standard Model constants are clouded by uncertainties in nonperturbative QCD parameters that relate measurable quantities to the underlying parton-level processes. Generally these QCD parameters have been obtained from model calculations with large uncertainties that are difficult to quantify. The CLEO Collaboration has taken a major step towards reducing these uncertainties in determining the CKM matrix elements Vcb and Vub using new measurements of the branching fraction and photon energy spectrum of B -> s gamma decays. This report includes: the new CLEO measurements of B -> s gamma decays, Vcb, and Vub; the first results from CLEO III data -- studies of B -> K pi, pi pi, and K Kbar decays; mention of some other recent CLEO B decay results; and plans for operating CESR and CLEO in the charm threshold region.
Cite
@article{arxiv.hep-ex/0111041,
title = {CLEO Results: B Decays},
author = {David G. Cassel},
journal= {arXiv preprint arXiv:hep-ex/0111041},
year = {2010}
}
Comments
v1 16 pages, 17 figures, Invited report at the XX Internatioinal Symposium on Lepton and Photon Interactions at High Energies, v2 minor updates to text and Fig. 4, v3 corrected numbers in Table 3