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Gauged Nambu-Jona-Lasinio model and axionic QCD string

Published 30 Dec 2014 in hep-ph and hep-th | (1412.8759v1)

Abstract: We propose an axionic QCD string scenario based on the original flux-tube model by Kogut and Susskind, and then incorporate it into a gauged Nambu-Jona-Lasinio (NJL) model. Axial anomaly is studied by a new topological coupling from the string side, and by the 't Hooft vortex from the NJL side, respectively. The nontrivial phase distribution of the quark condensate plays an important role in this scenario.

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