QCD Corrections and the Endpoint of the Lepton Spectrum in Semileptonic B Decays

Details QCD Corrections and the Endpoint of the Lepton Spectrum in Semileptonic B Decays QCD Corrections and the Endpoint of the Lepton Spectrum in Semileptonic B Decays

1993-12-20

arxiv.org/abs/hep-ph/9312306v2

Phys.Rev.D49:4553-4559,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, uses REVTeX, UCSD/PTH 93-38, CALT-68-1910, JHU-TIPAC-930029 (some changes to the discussion of subleading radiative

Scientific paper

10.1103/PhysRevD.49.4553

Recently, Neubert has suggested that a certain class of nonperturbative corrections dominates the shape of the electron spectrum in the endpoint region of semileptonic $B$ decay. Perturbative QCD corrections are important in the endpoint region. We study the effects of these corrections on Neubert's proposal. The connection between the endpoint of the electron spectrum in semileptonic $B$ decay and the photon spectrum in $b\rightarrow s\gamma$ is outlined.

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