Low-energy dynamics in N = 2 super QED : Two-loop approximation

@inproceedings{Kuzenko2003LowenergyDI,
  title={Low-energy dynamics in N = 2 super QED : Two-loop approximation},
  author={S. M. Kuzenko and Ian McArthur},
  year={2003}
}
The two-loop (Euler-Heisenberg-type) effective action for N = 2 supersymmetric QED is computed using the N = 1 superspace formulation. The effective action is expressed as a series in supersymmetric extensions of F 2n, where n = 2, 3, . . ., with F the field strength. The corresponding coefficients are given by triple propertime integrals which are evaluated exactly. As a by-product, we demonstrate the appearance of a non-vanishing F 4 quantum correction at the two-loop order. The latter result… CONTINUE READING

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