Lifetime-difference pattern of heavy hadrons
arXiv:hep-ph/0004264 · doi:10.1016/S0370-2693(00)00620-1
Abstract
The preasymptotic effects originating from the four-quark operators are disentangled from the other contributions by considering appropriate combinations of inclusive decay rates. Under the assumption of the isospin and heavy-quark symmetry, a set of relations connecting charmed and beauty decays is obtained without invoking specific models. The results are compared with other approaches and confronted with experiment.
9 pages, LaTex2e