A possible conflict between renormalized perturbation theory and an exact solution of the two-dimensional federbush model describing the pseudoscalar interaction of two massive fermions

Autor:	M. L. Tapper
Rok vydání:	1975
Předmět:	Physics Scattering amplitude Renormalization Pseudoscalar Probability amplitude Quantum electrodynamics Fermion Perturbation theory Quantum field theory S-matrix Mathematical physics
Zdroj:	Il Nuovo Cimento A. 25:165-172
ISSN:	1826-9869 0369-3546
DOI:	10.1007/bf02735617
Popis:	The backscattering probability amplitude between two massive fermions whose interactions are described by the two-dimensional Federbush model is calculated to second order in renormalized perturbation theory. The calculation yields a nonvanishing amplitude which is in direct conflict with the prediction of a trivial scattering matrix derived from an exact solution of this model studied by Federbush and Wightman.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9efffef4ddbdc495aaf2ba8580573f55 https://doi.org/10.1007/bf02735617 Zobrazit plný text záznamu Full text from SpringerLink