Chiral symmetry and the pion gas virial expansion∗
نویسنده
چکیده
In this work we study the thermodynamic properties of the pion gas starting from the realistic elastic scattering phase-shifts obtained from Chiral Perturbation Theory and using the virial expansion. In particular we study the state equation and the behavior of the quark condensate as a function of the temperature and the density. Research supported by the Department of Energy under contract DE-AC03-76SF00515 electronic address:[email protected] On leave of Absence from Departamento de F sica Te orica. Universidad Complutense. 28040 Madrid. Spain. electronic address:[email protected]
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تاریخ انتشار 1998