Extended NJL model with eight-quark interactions
classification
✦ hep-ph
keywords
interactionseight-quarkextendedmodeladdressbreakingconsequenceshooft
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We present the results obtained in the three-flavour ($N_f=3$) Nambu--Jona-Lasinio model which is extended by the $U(1)_A$ breaking six-quark 't Hooft interaction and eight-quark interactions. We address the problem of stability, and some phenomenological consequences of the models with multi-quark interactions.
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