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Domain wall AdS/QCD

Domain wall AdS/QCD
Domain wall AdS/QCD
We construct a new holographic description of QCD using domain wall fermions. The construction consists of probe D7 branes in a D5 brane geometry describing quarks on a (4+1)-dimensional defect in a (5+1)-dimensional gauge theory. We then compactify one dimension of the D5 to introduce confinement in the gauge degrees of freedom. In addition we allow a spatial dependent mass term for the D7 brane quarks to isolate chiral fermions on(3+1)-dimensional domain walls. The D7 world volume fields, when restricted to the domain wall position, provide an AdS/QCD description. We compute the spectrum and compare to data. We include higher dimension operators to systematically improve the description.
hep-th, hep-ph
1550-7998
Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Mitchell, Jack
12edf606-422d-4d9d-9326-aa4fc86b5af0
Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Mitchell, Jack
12edf606-422d-4d9d-9326-aa4fc86b5af0

Evans, Nick and Mitchell, Jack (2021) Domain wall AdS/QCD. Physical Review D, 104, [094018]. (doi:10.1103/PhysRevD.104.094018).

Record type: Article

Abstract

We construct a new holographic description of QCD using domain wall fermions. The construction consists of probe D7 branes in a D5 brane geometry describing quarks on a (4+1)-dimensional defect in a (5+1)-dimensional gauge theory. We then compactify one dimension of the D5 to introduce confinement in the gauge degrees of freedom. In addition we allow a spatial dependent mass term for the D7 brane quarks to isolate chiral fermions on(3+1)-dimensional domain walls. The D7 world volume fields, when restricted to the domain wall position, provide an AdS/QCD description. We compute the spectrum and compare to data. We include higher dimension operators to systematically improve the description.

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PhysRevD.104.094018 - Version of Record
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Accepted/In Press date: 30 August 2021
e-pub ahead of print date: 12 November 2021
Keywords: hep-th, hep-ph
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Identifiers

Local EPrints ID: 484537
URI: http://eprints.soton.ac.uk/id/eprint/484537
DOI: doi:10.1103/PhysRevD.104.094018
ISSN: 1550-7998
PURE UUID: e6197fa6-779e-4eaf-bc3e-52f3e15bc734

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Date deposited: 16 Nov 2023 14:46
Last modified: 16 Mar 2024 14:00

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Contributors

Author: Nick Evans
Author: Jack Mitchell

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