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Quark gap equation within the analytic approach to QCD
A. C. Aguilar, A. V. Nesterenko, J. Papavassiliou
The compatibility between the QCD analytic invariant charge and chiral symmetry breaking is examined in detail. The coupling in question incorporates asymptotic freedom and infrare…
Impact of the pion mass on nonpower expansion for QCD observables
A. V. Nesterenko, J. Papavassiliou
A new set of functions, which form a basis of the massive nonpower expansion for physical observables, is presented in the framework of the analytic approach to QCD at the four-loo…
Infrared enhanced analytic coupling and chiral symmetry breaking in QCD
A. C. Aguilar, A. V. Nesterenko, J. Papavassiliou
We study the impact on chiral symmetry breaking of a recently developed model for the QCD analytic invariant charge. This charge contains no adjustable parameters, other than the Q…