The infrared behaviour of a non-mean field spin-glass system is analysed, andthe critical exponent related to the divergence of the correlation length iscomputed at two loops within the epsilon-expansion technique with twoindependent methods. Both methods yield the same result confirming that theinfrared behaviour of the theory if well-defined and the underlying ideas ofthe Renormalization Group hold also in such non-mean field disordered model. Bypushing such calculation to high orders in epsilon, a consistent and predictivenon-mean field theory for such disordered system could be established.
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