Tests of the Parton Model for Inclusive Semileptonic B Decays with the Heavy Quark Effective Theory

Details Tests of the Parton Model for Inclusive Semileptonic B Decays with the Heavy Quark Effective Theory Tests of the Parton Model for Inclusive Semileptonic B Decays with the Heavy Quark Effective Theory

1994-11-28

arxiv.org/abs/hep-ph/9411404v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTeX, 12 pages, 2 Tex figures included

Scientific paper

In order to study the end-point spectrum of inclusive semileptonic $b \rightarrow u$ decays, we investigate the parton model motivated by deep inelastic scattering process. The reliability of the model is carefully examined by comparing the decay rates and the lepton spectra for $b \rightarrow c$ decay with those of the heavy quark effective theory. We also compute the decay rates of the inclusive semileptonic decay into tau lepton in terms of the parton model, which give another test of the model independently. We conclude that one can make the parton model consistent with the heavy quark effective theory, and it would be phenomenologically useful in extracting $|V_{ub}|$.

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