The non-perturbative corrections to the $\bar{B}\to X_s\gamma$ photon spectrum in a parton-like model

Y. -Y. Keum, P. Yu. Kulikov, I. M. Narodetskii +1

We derive a new parton-like formula, which establishes a simple connection between the electroweak decay rate $\Gamma (\bar{B}\to X_s\gamma$) and the rate of a free b-quark decay. The main fe…