Holographic Conformal Window - A Bottom Up Approach

Details Holographic Conformal Window - A Bottom Up Approach Holographic Conformal Window - A Bottom Up Approach

2009-11-12

arxiv.org/abs/0911.2462v2

JHEP 1005:041,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 Pages, 3 Figures. v2: references added

Scientific paper

10.1007/JHEP05(2010)041

We propose a five-dimensional framework for modeling the background geometry associated to ordinary Yang-Mills (YM) as well as to nonsupersymmetric gauge theories possessing an infrared fixed point with fermions in various representations of the underlying gauge group. The model is based on the improved holographic approach, on the string theory side, and on the conjectured all-orders beta function for the gauge theory one. We first analyze the YM gauge theory. We then investigate the effects of adding flavors and show that, in the holographic description of the conformal window, the geometry becomes AdS when approaching the ultraviolet and the infrared regimes. As the number of flavors increases within the conformal window we observe that the geometry becomes more and more of AdS type over the entire energy range.

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