Geodesic
Two-Loop Anomalous Dimension of $N=1$ Supersymmetric Quantum Electrodynamics Regularized Using Higher Covariant Derivatives
Teoretičeskaâ i matematičeskaâ fizika, Tome 134 (2003) no. 3, pp. 430-446 Cet article a éte moissonné depuis la source Math-Net.Ru

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We calculate the two-loop anomalous dimension in the $N=1$ supersymmetric electrodynamics regularized through the higher covariant derivative method using the minimum subtraction scheme and show that the result is independent of the form of the regularizing term but does depend on the ratio between the masses $M$ of the Pauli–Villars fields and the dimensional constant $\Lambda$ in the regularizing term. We propose a simple subtraction scheme in which the result is independent of the parameters of the regularization used.
Keywords: regularization, higher covariant derivatives, counterterms. 
@article{TMF_2003_134_3_a8,
     author = {A. A. Soloshenko and K. V. Stepanyantz},
     title = {Two-Loop {Anomalous} {Dimension} of $N=1$ {Supersymmetric} {Quantum} {Electrodynamics} {Regularized} {Using} {Higher} {Covariant} {Derivatives}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {430--446},
     year = {2003},
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     url = {http://geodesic.mathdoc.fr/item/TMF_2003_134_3_a8/}
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A. A. Soloshenko; K. V. Stepanyantz. Two-Loop Anomalous Dimension of $N=1$ Supersymmetric Quantum Electrodynamics Regularized Using Higher Covariant Derivatives. Teoretičeskaâ i matematičeskaâ fizika, Tome 134 (2003) no. 3, pp. 430-446. http://geodesic.mathdoc.fr/item/TMF_2003_134_3_a8/

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