经典非极小拉格朗日量与狭义相对论的运动学检验
Classical Nonminimal Lagrangians and Kinematic Tests of Special Relativity
摘要：
本文对标准模型扩展（SME）中的非最小费米子部分的经典拉格朗日函数作了一个简要的总结。这样的拉格朗日量是适当的描述经典粒子，受到基于SME的洛伦兹破坏的背景场。显式，拉格朗日得到领先的非最小贡献的m，a，c，e和f系数。然后，这些结果被用来解释经典的，运动学测试的狭义相对论的框架内的非最小SME。这导致了新的限制某些非最小控制系数。尽管这些实验在当时已经非常先进，但它们探测洛伦兹破坏的灵敏度仍然远远低于普朗克尺度。获得新的约束可以被认为是一个证明的原则，证明了经典的拉格朗日计算的适用性。
英文摘要：
This article gives a brief summary on recently obtained classical lagrangians for the nonminimal fermion sector of the Standard-Model Extension (SME). Such lagrangians are adequate descriptions of classical particles that are subject to a Lorentz-violating background field based on the SME. Explicitly, lagrangians were obtained for the leading nonminimal contributions of the m, a, c, e, and f coefficients. These results were then used to interpret classical, kinematic tests of Special Relativity in the framework of the nonminimal SME. This led to new constraints on certain nonminimal controlling coefficients. Although the experiments were very sophisticated in the era when they were carried out, their sensitivities for detecting Lorentz violation were still far away from the Planck scale. Obtaining the novel constraints can be considered as a proof-of-principle demonstrating the applicability of the classical lagrangians computed.
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