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A holographic study of the gauged NJL model

A holographic study of the gauged NJL model
A holographic study of the gauged NJL model
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.
0370-2693
1-4
Clemens, William, Howard
43bd1d41-555e-48f1-9101-3b4d6cec45da
Evans, Nicholas
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Clemens, William, Howard
43bd1d41-555e-48f1-9101-3b4d6cec45da
Evans, Nicholas
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3

Clemens, William, Howard and Evans, Nicholas (2017) A holographic study of the gauged NJL model. Physics Letters B, 771, 1-4. (doi:10.1016/j.physletb.2017.05.027).

Record type: Article

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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More information

Accepted/In Press date: 9 May 2017
e-pub ahead of print date: 15 May 2017
Published date: 10 August 2017
Organisations: Theory Group, Physics & Astronomy

Identifiers

Local EPrints ID: 408288
URI: https://eprints.soton.ac.uk/id/eprint/408288
ISSN: 0370-2693
PURE UUID: 163671aa-86d9-44c1-896b-0d195688c449

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Date deposited: 19 May 2017 04:02
Last modified: 13 Mar 2019 19:54

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