Weak decays of the B_c meson to B_s and B mesons in the relativistic quark model

Details Weak decays of the B_c meson to B_s and B mesons in the relativistic quark model Weak decays of the B_c meson to B_s and B mesons in the relativistic quark model

2003-08-14

arxiv.org/abs/hep-ph/0308149v2

Eur.Phys.J.C32:29-43,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, 12 figures, version to appear in Eur. Phys. J. C

Scientific paper

10.1140/epjc/s2003-01347-5

Semileptonic and nonleptonic decays of the B_c meson to B_s and B mesons, caused by the c\to s,d quark transitions, are studied in the framework of the relativistic quark model. The heavy quark expansion in inverse powers of the active c and spectator \bar b quark is used to simplify calculations while the final s and d quarks in the B_s and B mesons are treated relativistically. The decay form factors are explicitly expressed through the overlap integrals of the meson wave functions in the whole accessible kinematical range. The obtained results are compared with the predictions of other approaches.

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