CLEO Results: B Decays

Details CLEO Results: B Decays CLEO Results: B Decays

2001-11-12

arxiv.org/abs/hep-ex/0111041v3

Int.J.Mod.Phys.A17:2951-2966,2002

Physics

High Energy Physics

High Energy Physics - Experiment

v1 16 pages, 17 figures, Invited report at the XX Internatioinal Symposium on Lepton and Photon Interactions at High Energies,

Scientific paper

10.1142/S0217751X02012521

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.

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