Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-12-30
Phys.Rev.D79:066014,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 8 eps figures, REVTeX4. v2: Effect of localized kinetic terms included; lengthened discussion of GOR relation; refere
Scientific paper
10.1103/PhysRevD.79.066014
Estimates of the light hadron masses, decay constants and couplings in AdS/QCD models are generally more accurate than should have been expected. Certain predictions based on the AdS/CFT correspondence, such as the ratio of the equilibrium viscosity to entropy density, are universal and therefore provide firm experimental tests of these models. Other observables, while not completely universal, may be relatively insensitive to model details. We calculate the dependence of a number of low-energy hadronic observables on details of the hard-wall AdS/QCD model. In particular, we vary the infrared boundary conditions, the 5D gauge coupling, and the mass of the field responsible for chiral symmetry breaking, while holding fixed a small number of observables. We also find a generalized Gell-Mann-Oakes-Renner relation which helps to justify the identification of model parameters with the product of physical quark mass and chiral condensate as per the AdS/CFT correspondence.
Erlich Joshua
Westenberger Christopher
No associations
LandOfFree
Tests of Universality in AdS/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 Tests of Universality in AdS/QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tests of Universality in AdS/QCD will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-537247