The Cornell Potential from General Geometries in AdS / QCD
Abstract
We consider the heavy quark-antiquark potential in the AdS / QCD correspondence, focusing in particular on a recently calculated AdS-like metric deformed by back-reaction effects. We find that tuning the long-distance behaviour of the potential leads to a discrepancy at small distances, and discuss how to better constrain AdS / QCD geometries. A systematic comparison of various geometries is presented, based on goodness of fit to lattice data in the quenched approximation. The back-reacted geometry is seen to be phenomenologically favoured over an alternative geometry with the same number of parameters, although it does not perform as well as some other geometries.
Cite
@article{arxiv.hep-ph/0701157,
title = {The Cornell Potential from General Geometries in AdS / QCD},
author = {C D White},
journal= {arXiv preprint arXiv:hep-ph/0701157},
year = {2008}
}
Comments
12 pages, 4 figures. Revised and expanded version to appear in Physics Letters B