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