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Holographic QCD and perfection

Holographic QCD and perfection
Holographic QCD and perfection
A holographic description of chiral symmetry breaking in the pattern of QCD is reviewed.
D7 brane probes are used to include quark fields in a simple non-supersymmetric deformation of the AdS/CFT Correspondence. The axial symmetry breaking is realized
geometrically and the quark condensate and meson masses are computable.
Surprisingly, treating the model as a description of QCD works quantitatively at the 15% level. Models of this AdS/QCD type typically have a strongly coupled, conformal UV regime that is far from QCD. To systematically move closer to QCD,
we propose cutting out the large radius gravitational description and matching operators and couplings at a finite UV cut off in the spirit of a perfect lattice action.
A simple example is discussed.
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Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3

Evans, Nick (2007) Holographic QCD and perfection. Pre-print, (hep-ph/0701218v), 1-8.

Record type: Article

Abstract

A holographic description of chiral symmetry breaking in the pattern of QCD is reviewed.
D7 brane probes are used to include quark fields in a simple non-supersymmetric deformation of the AdS/CFT Correspondence. The axial symmetry breaking is realized
geometrically and the quark condensate and meson masses are computable.
Surprisingly, treating the model as a description of QCD works quantitatively at the 15% level. Models of this AdS/QCD type typically have a strongly coupled, conformal UV regime that is far from QCD. To systematically move closer to QCD,
we propose cutting out the large radius gravitational description and matching operators and couplings at a finite UV cut off in the spirit of a perfect lattice action.
A simple example is discussed.

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More information

Published date: 25 January 2007
Additional Information: Talk presented at SCGT06.

Identifiers

Local EPrints ID: 57198
URI: https://eprints.soton.ac.uk/id/eprint/57198
PURE UUID: 0145636d-c327-47f8-90e0-04422dff1952

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Date deposited: 13 Aug 2008
Last modified: 13 Mar 2019 20:34

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