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arXiv 1505.04047hep-th
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关于洛伦兹破缺理论中的反常现象

On the anomalies in Lorentz-breaking theories

A. P. Baeta Scarpelli, T. Mariz, J. R. Nascimento, A. Yu. Petrov

摘要:

本文讨论了QED的Lorentz破缺推广中的手征反常,它除了包含标准模型推广中的一般项外,还包含了一些五维非最小耦合。我们发现,使用Fujikawa形式主义,这些非最小耦合诱导新的条款的异常依赖于洛伦兹破坏参数。微扰计算也进行了调查是否新的模糊的Carroll-Field-Jackiw条款诱导的有效行动。

英文摘要:

In this paper, we discuss the chiral anomaly in a Lorentz-breaking extension of QED which, besides the common terms that are present in the Standard Model Extension, includes some dimension-five nonminimal couplings. We find, using the Fujikawa formalism, that these nonminimal couplings induce new terms in the anomaly which depend on the Lorentz-violating parameters. Perturbative calculations are also carried out in order to investigate whether or not new ambiguous Carroll-Field-Jackiw terms are induced in the effective action.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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