The heavy-to-light transitions in the light-cone QCD sum rules

Abstract

We have analyzed the $B\to \pi$ and $B_s\to K$ semileptonic form factors and $B\to V\gamma (V=K^{\ast },\rho ,\omega )$ processes in the light-cone QCD sum rules. In order to enhance the predictivity and reliability of numerical results the chiral-current correlator is employed and the twist-3 light-cone wavefunction can be effectively eliminated from the sum rules.

Comments: Talk given at Internatinal Comference on Flavor Physics (ICFP 2001), Zhang-Jia-Jie city, Hunan, China, 31 May - 6 Jun, 2001