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arXiv · 1110.4259

Fourth-generation SM imprints in B -> K^*l^+l^- decays with polarized K^*

Aqeel Ahmed·Ishtiaq Ahmed·M. Jamil Aslam·M. Junaid·M. Ali Paracha·Abdur Rehman
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Abstract

The implication of the fourth-generation quarks in the B -> K^*l^+l^- (l=mu,tau) decays, when K^* meson is longitudinally or transversely polarized, is presented. In this context, the dependence of the branching ratio with polarized K^* and the helicity fractions (f_{L,T}) of K^* meson are studied. It is observed that the polarized branching ratios as well as helicity fractions are sensitive to the NP parameters, especially when the final state leptons are tauons. Hence the measurements of these observables at LHC can serve as a good tool to investigate the indirect searches of new physics beyond the Standard Model.

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Aqeel Ahmed, Ishtiaq Ahmed, M. Jamil Aslam, M. Junaid, M. Ali Paracha, Abdur Rehman. 2011-10-19. Fourth-generation SM imprints in B -> K^*l^+l^- decays with polarized K^*. https://doi.org/10.1103/physrevd.85.034018

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