ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. The contribution of the fourth generation quarks to the rare $B_s \rightarrow \ell^+ \ell^-$ and $B_s \rightarrow \ell^+ \ell^- \gamma$ decays are studied. Constraints on the extended Cabibbo-Kobayashi-Maskawa matrix elements |V tb V ts *| and $\vert V_{t^\prime b} V_{t^\prime s}^* \vert$ are obtained from the existing experimental result for the branching ratio of the $B \rightarrow X_s \gamma$ decay. The branching ratios of the above-mentioned decays, as well as the photon spectrum in the $B_s \rightarrow \ell^+ \ell^- \gamma$ decay, are studied. It is found that the results are sensitive to the existence of the fourth generation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epjc/s2002-01110-6
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