RARE B-]K-ASTERISK-L(-) DECAY IN LIGHT-CONE QCD()L()

We investigate the transition form factors for the B-->Kl(+)l(-) (l = mu, tau) decay in light cone QCD. It is found that the light cone and three-point QCD sum rule analyses for some of the form factors for th e decay B-->Kl(+)l(-) lead to absolutely different q(2) dependence. T he invariant dilepton mass distributions for the B-->Kmu(+)mu(-) and B-->Ktau(+)tau(-) decays and final lepton longitudinal polarization a symmetry, which includes both short-and long-distance contributions, a re also calculated.