Properties of Lightest Mesons at Finite Temperature and Quark/Baryon Chemical Potential in the Instanton Model of the QCD Vacuum

摘要

The paper is focused on calculating the finite temperature and quark/baryon chemical potential dependencies of the quark condensate and the π- and a-meson masses in the subcritical region in the instanton model of the QCD vacuum. The impact of phononlike excitation of instanton liquid on the characteristics of the a meson in such an environment is also examined.