Exclusive semileptonic and nonleptonic decays of the Bc meson

Details Exclusive semileptonic and nonleptonic decays of the Bc meson Exclusive semileptonic and nonleptonic decays of the Bc meson

2006-02-06

arxiv.org/abs/hep-ph/0602050v1

Phys.Rev.D73:054024,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 2 figures

Scientific paper

10.1103/PhysRevD.73.054024

We study exclusive nonleptonic and semileptonic decays of the Bc-meson within a relativistic constituent quark model previously developed by us. For the nonleptonic decays we use the factorizing approximation. We update our model parameters by using new experimental data for the mass and the lifetime of the Bc meson and the leptonic decay constants of the D-meson. We calculate the branching ratios for a large set of exclusive nonleptonic and semileptonic decays of the $B_c$ meson and compare our results with the results of other studies. As a guide for further experimental exploration we provide explicit formulas for the full angular decay distributions in the cascade decays Bc^- => J/psi(=> l^+l^-) + rho^-(=> pi^- pi^0) and Bc^- => J/psi(=> l^+l^-) + W^-(off-shell)(=> l^- + nubar).

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