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Towards a perfect QCD gravity dual

Towards a perfect QCD gravity dual
Towards a perfect QCD gravity dual
Many examples of gravitational duals exist of theories that are highly supersymmetric and conformal in the UV yet have the same massless states as QCD. We discuss such theories with an explicit UV cutoff and propose that, by tuning higher dimension operators at the cutoff by hand, the effects of the extra matter states in the UV may be removed from the IR physics. We explicitly work in the AdS–Schwarzschild description of QCD4 and tune the operator TrF4 by relaxing the near horizon limit to reproduce the lattice 0++ glueball mass results. We find that to reproduce the lattice data, the IR and UV cutoffs lie close to each other and there is essentially no AdS-like period between them. The improved geometry gives a better match to the lattice data for 0?+ glueball masses.
0370-2693
165-171
Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Shock, Jonathan P.
1b2d9076-cb7f-492e-b85d-b7513c16a2ee
Waterson, Tom
5b45f601-678e-41b9-834f-7d7fa04c4399
Evans, Nick
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Shock, Jonathan P.
1b2d9076-cb7f-492e-b85d-b7513c16a2ee
Waterson, Tom
5b45f601-678e-41b9-834f-7d7fa04c4399

Evans, Nick, Shock, Jonathan P. and Waterson, Tom (2005) Towards a perfect QCD gravity dual. Physics Letters B, 622 (1-2), 165-171. (doi:10.1016/j.physletb.2005.07.014).

Record type: Article

Abstract

Many examples of gravitational duals exist of theories that are highly supersymmetric and conformal in the UV yet have the same massless states as QCD. We discuss such theories with an explicit UV cutoff and propose that, by tuning higher dimension operators at the cutoff by hand, the effects of the extra matter states in the UV may be removed from the IR physics. We explicitly work in the AdS–Schwarzschild description of QCD4 and tune the operator TrF4 by relaxing the near horizon limit to reproduce the lattice 0++ glueball mass results. We find that to reproduce the lattice data, the IR and UV cutoffs lie close to each other and there is essentially no AdS-like period between them. The improved geometry gives a better match to the lattice data for 0?+ glueball masses.

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Published date: 25 August 2005

Identifiers

Local EPrints ID: 57203
URI: https://eprints.soton.ac.uk/id/eprint/57203
ISSN: 0370-2693
PURE UUID: cca5c6e3-188f-41ab-b53b-5b5427350f53

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Date deposited: 14 Aug 2008
Last modified: 13 Mar 2019 20:34

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Contributors

Author: Nick Evans
Author: Jonathan P. Shock
Author: Tom Waterson

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