Nambu-Jona-Lasinio models beyond the mean-field approximation

Inspired by the model of Nambu and Jona-Lasinio, various Lagrangians are considered for a system of interacting quarks. Employing standard techniques of many-body theory, the scalar part of the quark self-energy is calculated including terms up to second order in the interaction. Results obtained fo...

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Veröffentlicht in:	Physical review. C, Nuclear physics Nuclear physics, 1993-07, Vol.48 (1), p.413-422
Hauptverfasser:	Domitrovich, PP, Bückers, D, Müther, H
Format:	Artikel
Sprache:	eng
Schlagworte:	CALCULATION METHODS COMPOSITE MODELS ENERGY FUNCTIONS HARTREE-FOCK METHOD INTERACTIONS LAGRANGIAN FUNCTION MANY-BODY PROBLEM MATHEMATICAL MODELS MEAN-FIELD THEORY PARTICLE INTERACTIONS PARTICLE MODELS 662240 > Models for Strong Interactions-- (1992-) PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QUARK MODEL QUARK-QUARK INTERACTIONS SELF-ENERGY
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