Derivation of the exact NSVZ -function in N=1 SQED, regularized by higher derivatives, by direct summation of Feynman diagrams
Feb, 2011Citations per year
Abstract: (Elsevier)
For N = 1 supersymmetric quantum electrodynamics, regularized by higher derivatives, a method for summation of all Feynman diagrams defining the β -function is presented. Using this method we prove that the β -function is given by an integral of a total derivative, which can be easily calculated. It is shown that surviving terms give the exact NSVZ β -function. The results are compared with the explicit three-loop calculation.- Higher derivative regularization
- beta-Function
- Supersymmetry
- 81T15
- 81T18
- 81T60
- β -Function
- β-Function
- derivative: high
- quantum electrodynamics: supersymmetry
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