Semileptonic decays of mesons in Poincare-invariant potential model

摘要

Semileptonic decays of mesons, which contain one heavy quark, are considered in the framework of instantform of Poincare-invariant quantum mechanics (PIQM).The parameters of quark-quark interaction potential arefixed. From description of semileptonic decay constants for light mesons is obtained a strong restriction on lightquark masses. The wave functions of quark and antiquark are found by the variational method . The formfactors the semileptonic decays of mesons, which contain one heavy quark are calculated.