Renormalization group and Ward identities for infrared QED4
Journal Article
·
· Journal of Mathematical Physics
- Universita di Roma 'Tor Vergata', via della Ricerca Scientifica, I-00133 Rome (Italy)
A regularized version of Euclidean QED4 in the Feynman gauge is considered, with a fixed ultraviolet cutoff, photon mass of the size of the cutoff, and any value, including zero, of the electron mass. We will prove that the Schwinger functions are expressed by convergent series for small values of the charge and verify the Ward identities, up to corrections which are small for momentum scales far from the ultraviolet cutoff.
- OSTI ID:
- 21013732
- Journal Information:
- Journal of Mathematical Physics, Vol. 48, Issue 10; Other Information: DOI: 10.1063/1.2800156; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-2488
- Country of Publication:
- United States
- Language:
- English
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