Three-loop quantum corrections to the effective action are calculated for N=1 supersymmetric electrodynamics, regularized by higher derivatives. Using the obtained results we investigate the anomaly puzzle in the considered model.
@article{arxiv.hep-th/0304083,
title = {Three-loop $\beta$-function for N=1 supersymmetric electrodynamics, regularized by higher derivatives},
author = {A. A. Soloshenko and K. V. Stepanyantz},
journal= {arXiv preprint arXiv:hep-th/0304083},
year = {2009}
}