Artigo
Dynamical gluon mass corrections in heavy quarkonia decays
Fecha
2000-06-08Registro en:
Physics Letters B. Amsterdam: Elsevier B.V., v. 482, n. 4, p. 378-382, 2000.
0370-2693
10.1016/S0370-2693(00)00546-3
WOS:000087723300008
Autor
Universidade Estadual Paulista (Unesp)
Resumen
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/psi, Y), Relativistic and radiative corrections are also introduced to calculate alpha(s)(m(c)) and alpha(s)(m(b)) comparing them with other values available in the literature. The effects of dynamical gluon masses are negligible for Y decay but important for J/psi decay. (C) 2000 Elsevier B.V. B.V. All rights reserved.