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arXiv 1209.3574hep-phhep-th
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Finsler时空中的Lorentz和CPT破坏

Lorentz and CPT violations in Finsler spacetime

Zhe Chang, Sai Wang

摘要:

在Finsler几何框架下提出了具有内禀Lorentz和CPT破坏的标准模型。本文给出了定域闵可夫斯基时空中物质场和规范场的Lorentz破缺拉格朗日量和CPT破缺拉格朗日量。洛伦兹不变性破坏是由偏离闵可夫斯基时空背景引起的。类似地,CPT违反由局部Minkowski度量在奇偶校验和时间反转操作下的行为确定。为了帮助理解现象,我们比较了芬斯勒模型与标准模型扩展(SME)的一阶近似项。

英文摘要:

Standard model with intrinsic Lorentz and CPT violations is proposed in a Finsler geometric framework. We present explicitly Lorentz and CPT--breaking Lagrangians of the matter fields and the gauge fields in locally Minkowski spacetime. The Lorentz invariance violation is found to be originated from the spacetime background deviating from the Minkowski one. Similarly, the CPT violation is determined by the behaviors of the locally Minkowski metric under the parity and time reversal operations. To help understanding phenomenologies, we compare the Finslerian model with the standard--model extension (SME) term by term at a first order approximation.

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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