B Physics Results From CLEO
M.R. Shepherd (for the CLEO Collaboration)
TL;DR
This paper reports measurements of moments in semileptonic B decays and the B semileptonic branching fraction using CLEO data, testing Heavy Quark Effective Theory predictions.
Contribution
It provides new experimental measurements of lepton energy and recoil mass moments, and the B semileptonic branching fraction, with detailed comparison to theoretical models.
Findings
Measured B semileptonic branching fraction as (10.91±0.09±0.24)%
Analyzed moments in semileptonic B decay consistent with Heavy Quark Effective Theory
Compared experimental results with theoretical predictions as a function of lepton energy threshold
Abstract
We present results on lepton energy and recoil hadronic mass moments in semileptonic B decay using a total of 9.4 fb^-1 of data taken with the CLEO detector at the \Upsilon(4S). These results are discussed in the context of Heavy Quark Effective Theory and compared to theory predictions as a function of the minimum lepton energy requirement. We also measure the B semileptonic branching fraction, B(B\to Xe^+\nu_e), as (10.91\pm0.09\pm0.24)%.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Computational Physics and Python Applications