Fourth generation effects in rare exclusive B -> K*l(+)l(-) decay

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2000-10-02
Influence of the fourth generation, if ever exists, on the experimentally measurable quantities such as invariant dilepton mass distribution, lepton forward-backward asymmetry, and the ratio Gamma(L)/Gamma(T) of the decay widths when K* meson is longitudinally and transversally polarized, is studied. Using the experimental results on the branching ratios for the B --> X(s)gamma and semileptonic B --> X(c)l (v) over bar decays, the two possible solutions of the 4 x 4 Cabibbo-Kobayashi-Maskawa factor Vt'sVt'b are obtained as a function of the t'-quark mass. It is observed that the results for the above-mentioned physical quantities are essentially different from the standard model predictions only for one solution of the CKM factor. in this case the above-mentioned physical quantities can serve as efficient tools in search of the fourth generation. The other solution yields almost identical results with the SM.
NUCLEAR PHYSICS B

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Citation Formats
T. Alıyev, A. Özpineci, and M. Savcı, “Fourth generation effects in rare exclusive B -> K*l(+)l(-) decay,” NUCLEAR PHYSICS B, pp. 275–289, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34712.