Realistic regularization of the QED Green functions

Details Realistic regularization of the QED Green functions Realistic regularization of the QED Green functions

2000-03-13

arxiv.org/abs/hep-th/0003094v2

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

Generalizing the 't Hooft and Veltman method of unitary regulators, we demonstrate for the first time the existence of local, Lorentz-invariant, physically motivated Lagrangians of quantum-electrodynamic phenomena such that: (i) Feynman diagrams are finite and equal the diagrams of QED but with regularized propagators. (ii) N-point Green functions are C-, P-, and T-invariant up to a phase factor, Lorentz-invariant and causal. (iii) No auxiliary particles or parameters are introduced.

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