Pion susceptibility of the QCD vacuum from an effective quark-quark interaction

Abstract

A modified method for calculating the pion vacuum susceptibility from an effective quark-quark interaction model is derived. Within this approach it is shown that the pion vacuum susceptibility is free of ultraviolet divergence and is much smaller than the previous estimations.

13 pages, 2 figures

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Cited by in corpus (10)

• Progress in vacuum susceptibilities and their applications to the chiral phase transition of QCD
• New Method for Numerically Solving the Chemical Potential Dependence of the Dressed Quark Propagator
• Is There Only One Solution of the Dyson-Schwinger Equation for Quark Propagator in the Case of Non-zero Current Quark Mass
• Dynamical fermion mass generation and exciton spectra in graphene
• Vacuum pseudoscalar susceptibility
• Pion-nucleon Sigma Term in the Global Color Model of QCD
• Poincare covariant pseudoscalar and scalar meson spectroscopy in Wigner-Weyl phase
• General formula for the four-quark condensate and vacuum factorization assumption
• The Explicit and Dynamical Chiral Symmetry Breaking in an Effective Quark-quark Interaction Model
• The Chiral Quark Condensate and the Bag Constant with Finite Chemical Potential