Properties of lightest mesons at finite temperature and quark/baryon chemical potential in the instanton model of the QCD vacuum |
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| Authors: | G M Zinovjev S V Molodtsov A N Sissakian A S Sorin |
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| Institution: | (1) Bogoliubov Institute of Theoretical Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine;(2) Joint Institute for Nuclear Research, Dubna, Russia;(3) Institute of Theoretical and Experimental Physics, Moscow, Russia |
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| Abstract: | The paper is focused on calculating the finite temperature and quark/baryon chemical potential dependencies of the quark condensate and the π-and σ-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 σ meson in such an environment is also examined. |
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