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arXiv · 1702.08693

A Holographic Study of the Gauged NJL Model

Will Clemens·Nick Evans
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Abstract

The Nambu Jona-Lasinio model of chiral symmetry breaking predicts a second order chiral phase transition. If the fermions in addition have non-abelian gauge interactions then the transition is expected to become a crossover as the NJL term enhances the IR chiral symmetry breaking of the gauge theory. We study this behaviour in the holographic Dynamic AdS/QCD description of a non-abelian gauge theory with the NJL interaction included using Witten's multi-trace prescription. We study the behaviour of the mesonic spectrum as a function of the NJL coupling and the ratio of the UV cut off scale to the dynamical scale of the gauge theory.

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Will Clemens, Nick Evans. 2017-02-28. A Holographic Study of the Gauged NJL Model. https://doi.org/10.1016/j.physletb.2017.05.027

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