H. Boschi-Filho, N. R. F. Braga, F. Jugeau, M. A. C. Torres
An extended version of the AdS/QCD Soft-Wall model that incorporates QCD-like anomalous contributions to the dimensions of gauge theory operators is proposed. This approach leads to a relation between scalar glueball masses and beta functions. Using this relation, the glueball mass spectra that emerge from phenomenological QCD beta functions is investigated. The reverse problem is also considered: starting from a linear fit of lattice glueball masses, different possible beta functions are found. Remarkably, some of them present an infrared fixed point at finite coupling.
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http://arxiv.org/abs/1208.2291
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