Fourth-generation standard model imprints in B --> K*l+l- decays with polarized K.

The implication of the fourth-generation quarks in the B B --> K*l+l-∼ (l = u, T) decays when K* meson is longitudinally or transversely polarized is presented herein. In this context, the dependence of the branching ratio with polarized K* and the helicity fractions (fu) of K* meson were studied. It was observed that the polarized branching ratios as well as helicity fractions are sensitive to the new physics (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. [ABSTRACT FROM AUTHOR]