Heavy Quark Potentials in Some Renormalization Group Revised AdS/QCD Models

Details Heavy Quark Potentials in Some Renormalization Group Revised AdS/QCD Models Heavy Quark Potentials in Some Renormalization Group Revised AdS/QCD Models

2008-05-18

arxiv.org/abs/0805.2733v3

Phys.Rev.D78:126006,2008

Physics

High Energy Physics

High Energy Physics - Theory

comparisons with lattice results, qualitative consideration of quantum corrections are added. (accepted by Phys. Rev. D)

Scientific paper

10.1103/PhysRevD.78.126006

We construct some AdS/QCD models by the systematic procedure of GKN. These models reflect three rather different asymptotics the gauge theory beta functions approach at the infrared region, $\beta\propto-\lambda^2, -\lambda^3$ and $\beta\propto-\lambda$, where $\lambda$ is the 't Hooft coupling constant. We then calculate the heavy quark potentials in these models by holographic methods and find that they can more consistently fit the lattice data relative to the usual models which do not include the renormalization group improving effects. But only use the lattice QCD heavy quark potentials as constrains, we cannot distinguish which kind of infrared asymptotics is the better one.

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