Dynamical gluon mass corrections in heavy quarkonia decays

Using the expression of the dynamical gluon mass obtained through the operator product expansion we discuss the relevance of gluon mass effects in the decays V→hadrons (V=J/ψ, ϒ). Relativistic and radiative corrections are also introduced to calculate αs(mc) and αs(mb) comparing them with other values available in the literature. The effects of dynamical gluon masses are negligible for ϒ decay but important for J/ψ decay.