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Hard-soft renormalization of the massless Wess-Zumino model

M. Pernici·M. Raciti·F. Riva
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Abstract

We show that in a Wilsonian renormalization scheme with zero-momentum subtraction point the massless Wess-Zumino model satisfies the non-renormalization theorem; the finite renormalization of the superpotential appearing in the usual non-zero momentum subtraction schemes is thus avoided. We give an exact expression of the beta and gamma functions in terms of the Wilsonian effective action; we prove the expected relation $β= 3gγ$. We compute the beta function at the first two loops, finding agreement with previous results.

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M. Pernici, M. Raciti, F. Riva. 1998-05-15. Hard-soft renormalization of the massless Wess-Zumino model. https://doi.org/10.1016/s0370-2693(98)01111-3

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