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arXiv 1408.6064hep-ph
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Higgs跷跷板诱导的中微子质量与暗物质

The Higgs Seesaw Induced Neutrino Masses and Dark Matter

Yi Cai, Wei Chao

摘要:

在本文中,我们提出了一个可能的解释与TeV尺度的新物理,也提供了一个暗物质的候选人的活动中微子马约拉纳质量。我们推广了具有局域U(1)对称性的标准模型(SM),引入了自发破缺U(1)的奇异标量单态的真空期望值(VEV)的跷跷板关系.较大的VEV产生重中微子的Dirac质量项,而较小的VEV产生Majorana质量项。因此,通过修改后的反跷跷板机制产生的活动中微子质量。新费米子单态中最轻的单态是为了抵消U(1)'异常而引入的,它可以是具有超味对称性的稳定粒子,因此是一个合理的暗物质候选者。我们从暗物质遗迹丰度和暗物质直接探测的约束条件探索参数空间。

英文摘要:

In this paper we propose a possible explanation of the active neutrino Majorana masses with the TeV scale new physics which also provide a dark matter candidate. We extend the Standard Model (SM) with a local U(1)' symmetry and introduce a seesaw relation for the vacuum expectation values (VEVs) of the exotic scalar singlets, which break the U(1)' spontaneously. The larger VEV is responsible for generating the Dirac mass term of the heavy neutrinos, while the smaller for the Majorana mass term. As a result active neutrino masses are generated via the modified inverse seesaw mechanism. The lightest of the new fermion singlets, which are introduced to cancel the U(1)' anomalies, can be a stable particle with ultra flavor symmetry and thus a plausible dark matter candidate. We explore the parameter space with constraints from the dark matter relic abundance and dark matter direct detection.

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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