Second order QCD corrections to inclusive semileptonic b \to Xc l \bar ν_l decays with massless and massive lepton

Details Second order QCD corrections to inclusive semileptonic b \to Xc l \bar ν_l decays with massless and massive lepton Second order QCD corrections to inclusive semileptonic b \to Xc l \bar ν_l decays with massless and massive lepton

2009-11-20

arxiv.org/abs/0911.4142v1

JHEP 1002:089,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 4 figures, 5 tables

Scientific paper

10.1007/JHEP02(2010)089

We extend previous computations of the second order QCD corrections to semileptonic b \to c inclusive transitions, to the case where the charged lepton in the final state is massive. This allows accurate description of b \to c \tau \bar \nu_\tau decays. We review techniques used in the computation of O(\alpha_s^2) corrections to inclusive semileptonic b \to c transitions and present extensive numerical studies of O(\alpha_s^2) QCD corrections to b \to c l \bar \nu_l decays, for l =e, \tau.

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