Field renormalization and reduction formula in quantum electrodynamics
19734 pages
Published in:
- Phys.Rev.Lett. 30 (1973) 934-937
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Abstract: (APS)
An Ansatz is proposed for the asymptotic field of a charged particle which gives the known power-law behavior (p2−m2+iε)−1−β, β≠0, for the electron propagator near the mass shell. This allows the electron-wave-function renormalization to be related to the normalization of the asymptotic field. A reduction formula is presented, expressing the S matrix in terms of Green's functions which are evaluated according to a precise on-mass-shell renormalization prescription.- renormalization
- quantum electrodynamics
- electron: propagator
- s-matrix
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