Thermal Restoration of Chiral Symmetry in Supersymmetric Nambu-Jona-Lasinio Model with Soft SUSY Breaking
نویسنده
چکیده
The supersymmetric version of the Nambu-Jona-Lasinio model is investigated in connection with the chiral symmetry breaking induced by a soft SUSY breaking term. It is found that the broken chiral symmetry due to the soft breaking term is restored at suitably high temperature and the symmetry restoration occurs as first-order phase transitions. The critical temperature at which the chiral symmetry is restored is determined as a function of the strength of the soft breaking term and the field coupling constant. The dynamical fermion mass is calculated at finite temperature. Some possible applications to the breaking scenario of unified field theories are discussed.
منابع مشابه
26 6 v 1 8 A ug 1 99 8 HUPD - 9821 Phase Structure of Supersymmetric Nambu - Jona - Lasinio Model with Soft SUSY Breaking at Finite Temperature
The phase structure associated with the chiral symmetry is thoroughly investigated at finite temperature in the supersymmetric Nambu-Jona-Lasinio model with a soft SUSY breaking term. It is found that the chiral symmetry broken at vanishing temperature is recovered at sufficiently high temperature and the symmetry restoration takes place as the first order as well as second order phase transiti...
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