Radiatively corrected semileptonic spectra in B meson decays
Changhao Jin1 - Emmanuel A. Paschos2
inst1 Sektion Physik, Universität München,
Theresienstrasse 37, D-80333 München, Germany
(e-mail:
jin@photon.hep.physik.uni-muenchen.de)
2 Institut für Theoretische Physik, Universität Dortmund,
D-44221 Dortmund, Germany
Received: 9 April 1997 / Revised version: 27 May 1997
Abstract
We show how radiative QCD corrections calculated in terms of quarks can be
incorporated at the hadron level in inclusive semileptonic B-meson decays.
The bound state effects are described by a momentum distribution function of
the b quark.
The summation over the final states and the
averaging over the momentum distribution of the decaying quark render the
radiative corrections finite.
With this coherent formalism
we investigate the shape of the electron spectra
for 
and 
decays as a function of the parameters of the
theory.
The resultant
electron energy spectrum is in agreement with the experimental data.
Copyright Springer-Verlag
