Published February 2000
| Version v1
Journal article
Radiative corrections for the gauged Thirring model in causal perturbation theory
- 1. Universidad Complutense de Madrid (Spain). Dept. de Fisica Teorica
- 2. Departamento de Fisica e Quimica - Faculdade de Engenharia, Universidade Estadual Paulista - Campus de Guaratingueta, Av. Dr. Ariberto Pereira da Cunha, 333 12500-000 - Guaratingueta, S.P. (Brazil)
Description
We evaluate the one-loop fermion self-energy for the gauged Thirring model in (2+1) dimensions, with one massive fermion flavor. We do this in the framework of the causal perturbation theory. In contrast to QED3, the corresponding two-point function turns out to be infrared finite on the mass shell. Then, by means of a Ward identity, we derive the on-shell vertex correction and discuss the role played by causality for non-renormalizable theories. (orig.)
Additional details
Publishing Information
- Journal Title
- European Physical Journal. C
- Journal Volume
- 12
- Journal Issue
- 4
- Journal Page Range
- p. 701-705
- ISSN
- 1434-6044
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 31048612
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- FERMIONS; PERTURBATION THEORY; RADIATIVE CORRECTIONS; THIRRING MODEL; WARD IDENTITY
- Descriptors DEC
- CORRECTIONS
- Proposed descriptors and Free-text terms
- GAUGE FIELD THEORY; FEYNMAN DIAGRAMS; ELEMENTARY PARTICLE MASS; GAUGED THIRRING MODEL; CAUSAL PERTURBATION THEORY; ONE-LOOP FERMION SELF-ENERGY; (2+1) DIMENSIONS; MASSIVE FERMIONS; ONE FERMION FLAVOR THIRRING MODEL; IR FINITE TWO-POINT FUNCTION; INFRARED FINITENESS; MASS SHELL; ON-SHELL VERTEX CORRECTION; NONRENORMALIZABLE THEORIES
Optional Information
- Notes
- 16 refs.