FINITE NONPERTURBATIVE SOLUTIONS OF DYSON-SCHWINGER EQUATIONS IN QED IN THE INFRARED DOMAIN

Authors
RADOZYCKI T BIALYNICKIBIRULA I
Citation
T. Radozycki et I. Bialynickibirula, FINITE NONPERTURBATIVE SOLUTIONS OF DYSON-SCHWINGER EQUATIONS IN QED IN THE INFRARED DOMAIN, Physical review. D. Particles and fields, 52(4), 1995, pp. 2439-2445
Citations number
36
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
52
Issue
4
Year of publication
1995
Pages
2439 - 2445
Database
ISI
SICI code
0556-2821(1995)52:4<2439:FNSODE>2.0.ZU;2-5
Abstract
Assuming an ansatz for the vertex function and the electron propagator suggested by the Ward identity we solve the Dyson-Schwinger equations in quantum electrodynamics in the infrared domain. The nonperturbativ e results obtained in this way are in agreement with perturbation theo ry. In our approach the loop integrals are finite. Our procedure is se lf-consistent, no divergences arise during calculations, and only a fi nite renormalization has to be carried out.