| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9861015 | Physics Letters B | 2005 | 7 Pages |
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 N=2,1,0 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 0â+ glueball masses.
Related Topics
Physical Sciences and Engineering
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Authors
Nick Evans, Jonathan P. Shock, Tom Waterson,