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The QCD analytic running coupling and chiral symmetry breaking

A. V. Nesterenko, J. Papavassiliou

hep-pharXiv:hep-ph/0410072

Abstract

We study the dependence on the pion mass of the QCD effective charge by employing the dispersion relations for the Adler D function. This new massive analytic running coupling is compared to the effective coupling saturated by the dynamically generated gluon mass. A qualitative picture of the possible impact of the former coupling on the chiral symmetry breaking is presented.

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