Lorentz-breaking theory with higher derivatives in spinor sector

被引：24
|
作者：
Nascimento, J. R. [1 ]
Petrov, A. Yu. [1 ]
Marat Reyes, C. [2 ]
机构：
[1] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil
[2] Univ Bio Bio, Dept Ciencias Basicas, Chillan, Chile
来源：
PHYSICAL REVIEW D | 2015年 / 92卷 / 04期
关键词：
RADIATIVELY INDUCED LORENTZ; CPT VIOLATION;
D O I：
10.1103/PhysRevD.92.045030
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the two-point function of the gauge field in Lorentz-breaking theories with higher-derivative extension of the Dirac Lagrangian. We show that the Carroll-Field-Jackiw term naturally arises in this theory as a quantum correction being perfectly finite and thus displaying no ambiguities. Also, the finiteness of this term at the low energy limit and the absence of large Lorentz violating corrections allows to avoid the fine-tuning problem.
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收藏
页数：7
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