APS -APS April Meeting 2017 - Event - Constraints on extra dimensions within the framework of the Standard Model Extension

Frank Walz; Hamna Ali; James Overduin

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APS -APS April Meeting 2017 - Event - Constraints on extra dimensions within the framework of the Standard Model Extension

机译：APS -APS 2017年4月会议-活动-在标准模型扩展框架内对额外维度的限制

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We consider Kaluza-Klein-type extensions of General Relativity in which extra dimensions may be large but do not necessarily have units of length. Additional coordinates of this kind necessarily violate Lorentz symmetry in principle, but whether or not the violations are detectable in practice depends on the dimension-transposing constants that convert them into lengths. We parametrize these violations in terms of coefficients associated with the matter sector of the Standard Model Extension, and show that the associated variation in fundamental quantities, such as rest mass or charge, must occur slowly, on cosmological scales.

机译：我们考虑广义相对论的Kaluza-Klein型扩展，其中的额外维度可能很大，但不一定具有长度单位。这种类型的附加坐标原则上必定会违反洛伦兹对称性，但实际上是否可检测到违规取决于将其转换为长度的尺寸转换常数。我们用与标准模型扩展的物质领域相关的系数来对这些违规进行参数化，并表明，基本量的相关变化（例如静止质量或电荷）必须在宇宙学尺度上缓慢发生。

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《Bulletin of the American Physical Society》 |2017年第1期|共页
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Frank Walz; Hamna Ali; James Overduin;
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APS -APS April Meeting 2017 - Event - Constraints on extra dimensions within the framework of the Standard Model Extension

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