Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-09-12
Phys.Lett.B642:546-550,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, 2 figures
Scientific paper
10.1016/j.physletb.2006.10.019
We investigate imposing a UV cutoff into a simple AdS/QCD model of the rho mesons. The cutoff corresponds to the scale at which QCD moves from perturbative to non-perturbative behaviour, above which the gravity dual will itself become strongly coupled. Simply imposing a cutoff significantly improves the fit to the masses of the tower of excited rho mesons. Formally one should match the couplings of higher dimension operators and the anomalous dimensions of fields to the QCD values at the cutoff. We explore examples of these matchings including looking at the anomalous dimensions of the qbar gamma^mu q operators and including a G Tr F^4 coupling.
Evans Nick
Tedder Andrew
No associations
LandOfFree
Perfecting the Ultra-violet of Holographic Descriptions of QCD does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Perfecting the Ultra-violet of Holographic Descriptions of QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perfecting the Ultra-violet of Holographic Descriptions of QCD will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-691416