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

Abstract

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 τ\bar ν_τdecays. We review techniques used in the computation of O(α_s^2) corrections to inclusive semileptonic b \to c transitions and present extensive numerical studies of O(α_s^2) QCD corrections to b \to c l \bar ν_l decays, for l =e, τ.

30 pages, 4 figures, 5 tables

References in corpus (6)

• The W boson production cross section at the LHC through O(alpha_s^2)
• Mass effects in muon and semileptonic b -> c decays
• Evaluating multi-loop Feynman diagrams with infrared and threshold singularities numerically
• O(α_s^2) corrections to semileptonic decay b \to c l \bar ν_l
• Kinetic corrections to B -> X_c l nu at one loop
• Single Intermediate Vector Boson production in e+e- collisions at sqrt(s) = 183 - 209 GeV

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