Tau lepton distributions in semileptonic B decays
Marek Jezabek, Leszek Motyka
Abstract
Analytic formulae are given for order alphas perturbative QCD corrections to the double differential distribution of the tau lepton energy and the invariant mass of the tau + antineutrino system in semileptonic decays of the bottom quark. The corresponding distribution for B meson decays are obtained by combining these results and the nonperturbative QCD corrections calculated by Falk et al. The moments of the energy distribution of the tau lepton are calculated.
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