Polarization in semileptonic B decays

Details Polarization in semileptonic B decays Polarization in semileptonic B decays

1999-01-19

arxiv.org/abs/hep-ph/9901349v2

Eur.Phys.J.C11:317-323,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure, corrected typos, to appear in EPJ C

Scientific paper

10.1007/s100520050636

The paper gives the polarization of the tau lepton in the semileptonic B
decays with respect to the direction of the virtual W boson. The result is
given including the nonperturbative HQET corrections.The perturbative QCD
corrections are probably negligible as suggested by the existing results for
the longitudinal polarization of the charged lepton (Jezabek and Urban, 1998).

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