Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-07-13
Phys.Rev.D74:074008,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
41 latex pages, 14 figures, 21 tables.Version accepted for publication in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.74.074008
We present results for different observables measured in semileptonic and non-leptonic decays of the $B_c^-$ meson. The calculations have been done within the framework of a nonrelativistic constituent quark model. In order to check the sensitivity of all our results against the inter-quark interaction we use five different quark--quark potentials. We obtain form factors, decay widths and asymmetry parameters for semileptonic $B_c^-\to c\bar c$ and $B_c^-\to \bar B$ decays. In the limit of infinite heavy quark mass our model reproduces the constraints of heavy quark spin symmetry. For the actual heavy quark masses we find nonetheless large corrections to that limiting situation for some form factors. We also analyze exclusive non-leptonic two--meson decay channels within the factorization approximation.
Hernandez Eduardo
Nieves Juan
Verde--Velasco J. M.
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