DOI 10.1007/s100520000382
Pseudo-scalar heavy meson decays
in
covariant light front dynamics
Laboratoire de Physique Corpusculaire,
Université Blaise-Pascal, CNRS/IN2P3,
24 avenue des Landais, 63177 Aubière Cedex,
France
Received: 24 September 1999
/ Revised version: 25 February 2000
/
Published online: 8 May 2000
- © Springer-Verlag 2000
Abstract
We investigate the leptonic decay amplitude of heavy
pseudo-scalar mesons as well as the B to D transition amplitude in the
heavy quark limit, using the covariant formulation of light-front
dynamics. The explicit rotational invariance of this formalism
enables us to recover the analytic results obtained for these
processes using the Bakamjian-Thomas construction in equal time
dynamics, in the limit of an
infinitely heavy mass. The covariant formulation provides a very
convenient and coherent framework for calculating the 1/m corrections.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
