arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2008.12206gr-qchep-ph
收藏

引力有效场论的背景

Backgrounds in gravitational effective field theory

Alan Kostelecky, Zonghao Li

摘要:

有效场论描述重力耦合到物质的调查,允许运营商的任意质量尺寸。在保持内部规范对称性的同时,还包含了违反局部洛伦兹不变性和超同态不变性的项。违反局部洛伦兹和同态不变性和相关的概念问题的理论框架进行了讨论,包括在弯曲和近似平坦的时空中的转换,各种类型的背景的处理,对称性破缺的影响,以及在黎曼几何中明确违反的禁止约束。技术的有效运营商的建设,并在重力,规范,费米子,标量部门可能的条款进行分类和枚举。得到明确的表达式条款包含操作员的质量维6或更少的有效作用的广义相对论耦合到粒子物理的标准模型。考虑的特殊情况包括Einstein-Maxwell有效场论和只有标量耦合常数的极限。

英文摘要:

Effective field theories describing gravity coupled to matter are investigated, allowing for operators of arbitrary mass dimension. Terms violating local Lorentz and diffeomorphism invariance while preserving internal gauge symmetries are included. The theoretical framework for violations of local Lorentz and diffeomorphism invariance and associated conceptual issues are discussed, including transformations in curved and approximately flat spacetimes, the treatment of various types of backgrounds, the implications of symmetry breaking, and the no-go constraints for explicit violation in Riemann geometry. Techniques are presented for the construction of effective operators, and the possible terms in the gravity, gauge, fermion, and scalar sectors are classified and enumerated. Explicit expressions are obtained for terms containing operators of mass dimension six or less in the effective action for General Relativity coupled to the Standard Model of particle physics. Special cases considered include Einstein-Maxwell effective field theories and the limit with only scalar coupling constants.

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。

↑