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

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.

Talk given at the IVth International Conference on Quarks an Nuclear Physics, Madrid, June 5th-10th 2006