Dynamical gluon mass corrections in heavy quarkonia decays
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Data
2000-06-08
Autores
Mihara, A.
Natale, A. A.
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Elsevier B.V.
Resumo
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.
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Physics Letters B. Amsterdam: Elsevier B.V., v. 482, n. 4, p. 378-382, 2000.