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arXiv 1809.09110hep-phastro-ph.COhep-ex
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从规范轻子数得到的亲轻子暗物质:唯象学和引力波特征

Leptophilic dark matter from gauged lepton number: Phenomenology and gravitational wave signatures

Eric Madge, Pedro Schwaller

摘要:

新的规范对称性经常出现在超越标准模型的理论中。本文研究轻子数提升为规范对称性的模型。反常的消除需要引入额外的轻子,其中最轻的是自然的亲轻子暗物质候选者。我们对对撞机和暗物质现象学进行了全面的研究。此外,我们发现该模型在参数空间的大范围内存在一阶轻子数破缺相变。计算了相应的引力波信号,并评估了它在LISA和其他未来GW探测器上的可探测性。最后,我们评论暗物质,对撞机和引力波观测的互补性,并对未来对撞机的潜在影响。

英文摘要:

New gauge symmetries often appear in theories beyond the Standard Model. Here we study a model where lepton number is promoted to a gauge symmetry. Anomaly cancellation requires the introduction of additional leptons, the lightest of which is a natural leptophilic dark matter candidate. We perform a comprehensive study of both collider and dark matter phenomenology. Furthermore we find that the model exhibits a first order lepton number breaking phase transition in large regions of parameter space. The corresponding gravitational wave signal is computed, and its detectability at LISA and other future GW detectors assessed. Finally we comment on the complementarity of dark matter, collider and gravitational wave observables, and on the potential reach of future colliders.

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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