Decay Rate Ratios of Υ(5S) → BB Reactions
نویسنده
چکیده
We calculate the decay rate ratios for OZI allowed decays of Υ(5S) to two B mesons by using the decay amplitudes which incorporate the wave function of the Υ(5S) state. We obtain the results that the branching ratio of the Υ(5S) decay to B∗ sB ∗ s is much larger than the branching ratio to BsB ∗ s or BsB ∗ s , in good agreement with recent experimental results of CLEO and BELLE. This agreement with the experimental results is made possible since the nodes of the Υ(5S) radial wave function induce the nodes of the decay amplitude. We find that the results for the Υ(5S) decays to B (∗) u B (∗) u or B (∗) d B (∗) d pairs are dependent on the parameter values used for the potential between heavy quarks. PACS codes: 12.39.-x, 12.39.Pn, 13.25.-k, 13.25.Gv
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تاریخ انتشار 2008