QCD condensates in ADS/QCD

Abstract

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.

13 pages, no figure

References in corpus (9)

• Lecture Notes on Holographic Renormalization
• Instantons in QCD
• QCD and a Holographic Model of Hadrons
• Chiral symmetry breaking from five dimensional spaces
• Supersymmetric Gauge Theories and the AdS/CFT Correspondence
• The chiral condensate in holographic models of QCD
• Perfecting the Ultra-violet of Holographic Descriptions of QCD
• $S$ Parameter in the Holographic Walking/Conformal Technicolor
• Instantons and the large N_c limit, A.D. 2004