QCD/String holographic mapping and glueball mass spectrum

Details QCD/String holographic mapping and glueball mass spectrum QCD/String holographic mapping and glueball mass spectrum

2002-09-10

arxiv.org/abs/hep-th/0209080v3

Eur.Phys.J.C32:529-533,2004

Physics

High Energy Physics

High Energy Physics - Theory

More references included. Version to appear in Eur. Phys. Journ. C

Scientific paper

10.1140/epjc/s2003-01526-4

Recently Polchinski and Strassler reproduced the high energy QCD scaling at fixed angles from a gauge string duality inspired in AdS/CFT correspondence. In their approach a confining gauge theory is taken as approximately dual to an AdS space with an IR cut off. Considering such an approximation (AdS slice) we found a one to one holographic mapping between bulk and boundary scalar fields. Associating the bulk fields with dilatons and the boundary fields with glueballs of the confining gauge theory we also found the same high energy QCD scaling. Here, using this holographic mapping we give a simple estimate for the mass ratios of the glueballs assuming the AdS slice approximation to be valid at low energies. We also compare these results to those coming from supergravity and lattice QCD.

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