On Calculation of 2+ RG Functions in the Gross Neveu Model from Large N Expansions of Critical Exponents
N. A. Kivel, A. S. Stepanenko, A. N. Vasil'ev
Abstract
Using knowledge of the explicit n dependence of the RG functions and expressions of critical exponents in the framework of large N expansion in the Gross Neveu model we derive RG functions in 4- and 5-loop approximation.
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