Useful ratios between two-body nonleptonic and semileptonic decays of B mesons

Abstract

We compute important ratios between decay widths of some exclusive two-body nonleptonic and semileptonic B decays, which could be test of factorization hy- pothesis. We also present a summary of the expressions of the decay widths and differential decay rates of these decays, at tree level, including l = 0 (ground state), l = 1 (orbitally excited) and n = 2 (radially excited) mesons in the fi- nal state. From a general point of view, we consider eight transitions, namely H \rightarrow P, V, S, A, A, T, P (2S), V (2S). Our analysis is carried out assuming factorization hypothesis and using the WSB, ISGW and CLFA quark models.

Comments: 17 Pages, Version accepted for publication in Rev. Mex. Fis., The title was changed, in section 2 some equations were eliminated, one paragraph was added in section 3, section 5 and the appendix were re-written and section 6 was extended