Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
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Inertial Mass of the Chiral Quark-Loop Soliton in the Nambu & Jona-Lasinio Model at Finite Temperature and DensitySchleif, M.; Wünsch, R.
We consider the mass of the one-loop hedgehog soliton of the bosonized SU(2) Nambu & Jona-Lasinio model embedded in hot nuclear matter mimiced by a gas of constituent quarks. We prove that the proper-time regularized and self-consistently determined soliton in a heat bath obeys Poincare's invariance up order V2. At ifinite temperature and chemical potential, we show that the inertial mass obtained in the perturbative pushing approach coincides with the total internal energy of the soliton.
Forschungszentrum Rossendorf; FZR-132 Preprint