2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 16, 131-137
DOI 10.1007/s100520000382

Pseudo-scalar heavy meson decays
in covariant light front dynamics

F. Bissey - J.-F. Mathiot

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