Loreatz and CPT symmetries in commutative and noncommutative spacetimes

被引：22

作者：

Bazeia, D ^{[1
]}

Mariz, T ^{[1
]}

Nascimento, JR ^{[1
]}

Passos, E ^{[1
]}

Ribeiro, RF ^{[1
]}

机构：

[1] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, PB, Brazil

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2003年 / 36卷 / 17期

关键词：

D O I：

10.1088/0305-4470/36/17/319

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the fermionic sector of a given theory, in which massive and charged Dirac fermions interact with an Abelian gauge field, including a nonstandard contribution that violates both Lorentz and CPT symmetries. We offer an explicit calculation in which the radiative corrections due to the fermions seem to generate a Chern-Simons-like effective action. Our results are obtained under the general guidance of dimensional regularization, and they show that there is no room for Lorentz and CPT violation in both commutative and. noncommutative spacetimes.

引用

页码：4937 / 4945

页数：9

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