Tau lepton distributions in semileptonic B decays

Cracow; Institute of Physics; Jagellonian University; Katowice; Leszek Motyka (Institute of Physics; Marek Jezabek (Institute of Nuclear Physics; Poland; Poland); Silesian University

arxiv: hep-ph/9701358 · v1 · submitted 1997-01-23 · ✦ hep-ph

Tau lepton distributions in semileptonic B decays

Marek Jezabek (Institute of Nuclear Physics , Cracow , Poland , Institute of Physics , Silesian University , Katowice , Poland) , Leszek Motyka (Institute of Physics

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Jagellonian University

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classification ✦ hep-ph

keywords decaysdistributionleptoncalculatedcorrectionsenergysemileptonicalpha

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Analytic formulae are given for order alpha_s 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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Tau lepton distributions in semileptonic B decays

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