Nikolai Kivel


Estimate of probability of decay B0 -> D*\gamma


In the leading approximation, for heavy quarks, it is demonstrated that the decay probability is factorized to the perturbative part and non-perturbative matrix element. The last one is estimated by means of OPE. The estimate for branching (~ 1.5 10^-7) demonstrates that it is too small to be measured by present experiment.