Exclusive B -> K*l(+)l(-) decay with polarized K* and new physics effects

Using the most general, model independent effective Hamiltonian, the branch ing ratio of the B --> K* l(+)l(-) decay, when K* meson is longitudinally o r transversally polarized, is presented. The dependence of the branching ra tio on the new Wilson coefficients, when K* meson is polarized. is studied. It is observed that the branching ratio is very sensitive to the vector an d tenser type interactions, which will be useful in search of new physics b eyond the Standard Model. (C) 2001 Elsevier Science B.V. All rights reserve d.