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arXiv 1903.09643hep-thgr-qc
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引力Higgs机制的限制

Constraints on a Gravitational Higgs Mechanism

James Bonifacio, Kurt Hinterbichler, Rachel A. Rosen

摘要:

我们表明,这是不可能的,以改善高能量行为的树级四点振幅的大质量自旋2粒子,包括交换的任何数量的标量和矢量在四维时空。这限制了大质量引力的弱耦合紫外线扩展,排除了基于自旋小于2的粒子的希格斯机制的引力类似物。任何具有洛伦兹不变量和幺正性的树能级紫外线扩展都必须包含自旋大于或等于2的额外大质量粒子,就像卡鲁扎-克莱因理论和弦论中的那样。

英文摘要:

We show that it is impossible to improve the high-energy behavior of the tree-level four-point amplitude of a massive spin-2 particle by including the exchange of any number of scalars and vectors in four spacetime dimensions. This constrains possible weakly coupled ultraviolet extensions of massive gravity, ruling out gravitational analogues of the Higgs mechanism based on particles with spins less than two. Any tree-level ultraviolet extension that is Lorentz invariant and unitary must involve additional massive particles with spins greater than or equal to two, as in Kaluza-Klein theories and string theory.

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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