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arXiv 1508.03031hep-ph
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来自尺度不变多希格斯门的暗物质和中微子质量

Dark matter and neutrino masses from a scale-invariant multi-Higgs portal

Alexandros Karam, Kyriakos Tamvakis

摘要:

我们考虑一个经典的标度不变版本的标准模型,扩展了额外的黑暗$SU(2)_X$规范群。除了暗规范玻色子和一个通过门耦合与标准模型Higgs耦合的暗标量二重态外,我们还引入了右手中微子和一个额外的实单重标量场.在对称性破缺后,我们研究了多希格斯扇区,并施加了理论和实验限制。此外,通过计算暗物质残余丰度和核子自旋无关散射截面,我们确定了符合现有限制的可行暗物质质量范围。该模型可以在不久的将来通过对撞机实验和直接探测搜索(如XENON 1T)进行测试。

英文摘要:

We consider a classically scale invariant version of the Standard Model, extended by an extra dark $SU(2)_X$ gauge group. Apart from the dark gauge bosons and a dark scalar doublet which is coupled to the Standard Model Higgs through a portal coupling, we incorporate right-handed neutrinos and an additional real singlet scalar field. After symmetry breaking à la Coleman-Weinberg, we examine the multi-Higgs sector and impose theoretical and experimental constraints. In addition, by computing the dark matter relic abundance and the spin-independent scattering cross section off a nucleon we determine the viable dark matter mass range in accordance with present limits. The model can be tested in the near future by collider experiments and direct detection searches such as XENON 1T.

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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