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arXiv 2203.09282hep-phastro-ph.HE
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强正电子流的$Z_3$标量暗物质

$Z_3$ Scalar Dark Matter with Strong Positron Fluxes

Bastián Díaz Sáez, Karim Ghorbani

摘要:

我们探讨了一类简化的扩展标准模型包含一个复杂的单重标量作为暗物质的候选人伴随着一个矢量状轻子作为调解人,都负责下一个新的$Z_3$对称性。在其最简单的形式中,新物理学仅与右手电子耦合,并且该模型能够在高达几TeV的电弱尺度周围容纳正确的暗物质遗迹丰度,从而避开了微扰、对撞机和暗物质搜索的最强约束。此外,该模型是能够提高自然正电子通量的几个数量级,呈现盒形谱。这个框架打开了许多唯象的可能性,取决于新领域的量子电荷分配。

英文摘要:

We explore a class of simplified extensions to the Standard Model containing a complex singlet scalar as a dark matter candidate accompanied by a vector-like lepton as a mediator, both charged under a new $Z_3$ symmetry. In its simplest form, the new physics couples only to right-handed electrons, and the model is able to accommodate the correct dark matter relic abundance around the electroweak scale up to several TeV evading the strongest constraints from perturbativity, collider and dark matter searches. Furthermore, the model is capable to enhance naturally positron fluxes by several orders of magnitude presenting a box-shape spectra. This framework opens up a lot of phenomenological possibilities depending on the quantum charge assignments of the new fields.

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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