Realistic regularization of the QED Green functions
نویسنده
چکیده
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 Tinvariant up to a phase factor, Lorentz-invariant and causal. (iii) No auxiliary particles or parameters are introduced.
منابع مشابه
Regularization of QED by a generalized ’t Hooft and Veltman method
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 causal. (iii) Smatrix relates only electron...
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تاریخ انتشار 2008