Quark-binding effects in inclusive decays of heavy mesons - art. no. 074012

We present a new approach to the analysis of quark-binding effects in inclu sive decays of heavy mesons within the relativistic dispersion quark model. Various differential distributions, such as electron energy spectrum, q(2) and M-X distributions, are calculated in terms of the B meson soft wave fu nction which also determines long-distance effects in exclusive transition form factors. Using the quark-model parameters and the B meson wave functio n previously determined from the description of the exclusive b --> u trans itions within the same dispersion approach, we provide numerical results on various distributions in the inclusive B --> X(c)l<(nu)over bar>(l). decay s.