Axial current in QED and semi-naive dimensional renormalization

Abstract

We renormalize at two loops the axial current and $F\tilde{F}$ in massless QED, using the recently proposed semi-naive dimensional renormalization scheme. We show that the results are in agreement with those in the Breitenlohner-Maison-'t Hooft-Veltman scheme, previously obtained indirectly by making a three-loop computation.

12 pages, 2 figures revised version with minor corrections

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