Abstract
The semileptonic decays were calculated in the framework of the standard model by employing the perturbative QCD (pQCD) factorization approach. We defined four ratios of the branching ratios of the considered decays and . From the numerical results and phenomenological analysis we found that (a) the pQCD predictions for the branching ratios generally agree well with the previous theoretical predictions, (b) for the four ratios, the pQCD predictions are , , , and , which show a very good flavor symmetry with the corresponding ratios for decays, and (c) we strongly suggest the measurements of the new ratios and in the forthcoming Super-B experiments.
- Received 22 November 2013
DOI:https://doi.org/10.1103/PhysRevD.89.014030
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