Study of semileptonic and nonleptonic decays of the Bc - meson

E. Hernández; J. Nieves; J. M. Verde-Velasco

doi:10.1140/epja/i2006-10270-x

EPJ

Study of semileptonic and nonleptonic decays of the B_c ^- meson

E. Hernández¹, J. Nieves² and J. M. Verde-Velasco¹

¹ Grupo de Fısica Nuclear, Departamento de Fısica Fundamental e IUFFyM, Universidad de Salamanca, Spain
² Departamento de Fısica Atómica, Molecular y Nuclear, Universidad de Granada, Spain

Received: 8 December 2006
Accepted: 15 December 2006
Published online: 21 March 2007

Abstract

We evaluate semileptonic and two-meson nonleptonic decays of the B _c ^- meson in the framework of a nonrelativistic quark model. The former are done in spectator approximation using one-body current operators at the quark level. Our model reproduces the constraints of heavy-quark spin symmetry obtained in the limit of infinite heavy-quark mass. For the two-meson nonleptonic decays we work in factorization approximation. We compare our results to the ones obtained in different relativistic approaches.

PACS: 12.39.Hg Heavy quark effective theory – / 12.39.Jh Nonrelativistic quark model – / 13.20.Fc Decays of charmed mesons – / 13.20.He Decays of bottom mesons –