DOI 10.1007/s100529900169
Polarization in semileptonic
decays
M. Jezabek1,2 - P. Urban1
1 Institute of Physics, University of Silesia,
ul. Uniwersytecka 4, 40007 Katowice, Poland
2 Institute of Nuclear Physics, Kawiory 26a, 30055 Cracow, Poland
Received: 14 January 1999 / Revised version: 14 May 1999 / Published online: 14 October 1999
Abstract
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 given
includes the nonperturbative HQET corrections. The perturbative
QCD corrections are probably negligible, as is suggested by the existing
results for the longitudinal polarization of the charged lepton (Jezabek
and Urban, 1998).
Copyright Springer-Verlag
