A New Estimate of $B\to (\rho ,\omega )+\gamma$ In The Light-Cone QCD Sum Rule

Abstract

We propose a new estimate of the process $B\to (\rho ,\omega )+\gamma$ by using the light-cone QCD sum rule. The aim is to choose the chiral quark current operators in order to eliminate the uncertainty arising from the chiral-even operators in the correlator. In the case of neglecting the corrections from $\rho$-meson mass, the sum rules for form factors are obtained, which are valid to the twist-three accuracy. The resulting branching ratios are consistent with the experimental data.

Comments: Latex, 12 pages including 3 ps figures