Published May 15, 2008
| Version v1
Journal article
Dynamical Lorentz and CPT symmetry breaking in a 4D four-fermion model
- 1. Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970, Sao Paulo, SP (Brazil)
- 2. Departamento de Fisica, Universidade Federal da Paraiba, Caixa Postal 5008, 58051-970, Joao Pessoa, Paraiba (Brazil)
Description
In a 4D chiral Thirring model we analyze the possibility that radiative corrections may produce spontaneous breaking of Lorentz and CPT symmetry. By studying the effective potential, we verified that the chiral current ψγμγ5ψ may assume a nonzero vacuum expectation value which triggers Lorentz and CPT violations. Furthermore, by making fluctuations on the minimum of the potential we dynamically induce a bumblebee-like model containing a Chern-Simons term
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.77.105002;
- arXiv
- arXiv:0709.2904v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 77
- Journal Issue
- 10
- Journal Page Range
- p. 105002-105002.6
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40075520
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHIRALITY; EXPECTATION VALUE; FERMIONS; FLUCTUATIONS; PARTICLES; RADIATIVE CORRECTIONS; SYMMETRY; SYMMETRY BREAKING; THIRRING MODEL
- Descriptors DEC
- CORRECTIONS; PARTICLE PROPERTIES; VARIATIONS
Optional Information
- Notes
- (c) 2008 The American Physical Society