QCD Condensates in ADS/QCD

Preprint number: CP3-Origins-2009-16
Author: Jacopo Bechi (CP3-Origins)
External link: arXiv.org

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This paper focuses on some issues about condensates and renormalization in AdS/QCD models. In particular we consider the consistency of the AdS/QCD approach for scale dependent quantities as the chiral condensate questioned in some recent papers and the 4D meaning of the 5D cosmological constant in a model in which the QCD is dual to a 5D gravity theory. We will be able to give some arguments that the cosmological constant is related to the QCD gluon condensate.