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arxiv: hep-ph/0603249 · v3 · submitted 2006-03-30 · ✦ hep-ph · hep-lat· hep-th

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Improving the Infra-red of Holographic Descriptions of QCD

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classification ✦ hep-ph hep-lathep-th
keywords infra-redtheorychiraldescriptionholographicmetricactionbreaking
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A surprisingly good holographic description of QCD can be obtained from naive five dimensional gauge theory on a truncated AdS space. We seek to improve the infra-red description of QCD in such models by using a more sophisticated metric and an action derived from string theory duals of chiral symmetry breaking. Our metric is smooth into the infra-red and the chiral condensate is a prediction of the dynamics. The theory reproduces QCD meson data at the 10% level.

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