Aetherlike Lorentz-breaking actions

被引:151
作者
Gomes, M. [1 ]
Nascimento, J. R. [2 ]
Petrov, A. Yu. [2 ]
da Silva, A. J. [1 ]
机构
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
[2] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil
来源
PHYSICAL REVIEW D | 2010年 / 81卷 / 04期
基金
巴西圣保罗研究基金会;
关键词
RADIATIVELY-INDUCED LORENTZ; CPT VIOLATION; SPINOR ELECTRODYNAMICS;
D O I
10.1103/PhysRevD.81.045018
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show that CPT-even aetherlike Lorentz-breaking actions, for the scalar and electromagnetic fields, are generated via their appropriate Lorentz-breaking coupling to spinor fields, in three, four, and five space-time dimensions. Besides, we also show that aetherlike terms for the spinor field can be generated as a consequence of the same couplings. We discuss the dispersion relations in the theories with aetherlike Lorentz-breaking terms and find the tree-level effective (Breit) potential for fermion scattering and the one-loop effective potential corresponding to the action of the scalar field.
引用
收藏
页数:9
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