Duality in semileptonic inclusive B-decays in potential models: regular versus singular potentials

A. Le Yaouanc, D. Melikhov, V. Morenas +3

Making use of the nonrelativistic potential model for the description of mesons, and working in the Shifman-Voloshin limit, we compare the integrated rate $\Gamma (B\to X_{c}l\nu )$ calculate…