The chiral condensate in holographic models of QCD

Details The chiral condensate in holographic models of QCD The chiral condensate in holographic models of QCD

2008-04-07

arxiv.org/abs/0804.1096v3

Phys.Rev.C79:045203,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, fixed typos in Eq. 6 and in text after Eq. 13

Scientific paper

10.1103/PhysRevC.79.045203

Bottom-up holographic models of QCD, inspired by the AdS/CFT correspondence, have shown a remarkable degree of phenomenological success. However, they rely on a number of bold assumptions. We investigate the reliability of one of the key assumptions, which involves matching the parameters of these models to QCD at high 4D momentum $q^2$ and renormalization scale $\mu^2$. We show that this leads to phenomenological and theoretical inconsistencies for scale-dependent quantities such as $\bra \bar{q}q\ket$

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