Consistent momentum space regularization/renormalization of supersymmetric quantum field theories: The three-loop β-function for the Wess-Zumino model

Abstract

We compute the three loop β function of the Wess-Zumino model to motivate implicit regularization (IR) as a consistent and practical momentum-space framework to study supersymmetric quantum field theories. In this framework which works essentially in the physical dimension of the theory we show that ultraviolet are clearly disantangled from infrared divergences. We obtain consistent results which motivate the method as a good choice to study supersymmetry anomalies in quantum field theories. © SISSA/ISAS 2004.