Two-loop renormalization of N=1 supersymmetric electrodynamics, regularized by higher derivatives

Details Two-loop renormalization of N=1 supersymmetric electrodynamics, regularized by higher derivatives Two-loop renormalization of N=1 supersymmetric electrodynamics, regularized by higher derivatives

2002-03-13

arxiv.org/abs/hep-th/0203118v3

Physics

High Energy Physics

High Energy Physics - Theory

LaTex, 40 pages, 30 eps-figures; calculations are described in more details

Scientific paper

Two-loop $\beta$-function and anomalous dimension are calculated for N=1 supersymmetric quantum electrodynamics, regularized by higher derivatives in the minimal subtraction scheme. The result for two-loop contribution to the $\beta$-function appears to be equal to 0, does not depend on the form of regularizing term and does not lead to anomaly puzzle. Two-loop anomalous dimension can be also made independent on parameters of higher derivative regularization by a special choice of subtraction scheme.

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