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paper

Properties of lightest mesons at finite temperature and quark/baryon chemical potential in instanton model of QCD vacuum

arXiv:hep-ph/0702178 · doi:10.1007/s11497-008-1002-1

Abstract

The thermal and quark/baryon chemical potential dependences of quark condensate and masses of $π$- and $σ$-mesons are studied in the instanton model of the QCD vacuum in precritical region. The impact of phonon-like excitations of instanton liquid on the characteristics of $σ$-meson in such an environment is also examined.

9 pages, 3 figures