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arXiv 1906.09685hep-ph
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单重态-二重态狄拉克暗物质和中微子质量

Singlet-Doublet Dirac Dark Matter and Neutrino Masses

Diego Restrepo, Andrés Rivera, Walter Tangarife

摘要:

我们研究了扩展的标准模型,解决了暗物质难题,并产生狄拉克中微子质量通过辐射跷跷板机制。新的场内容包括一个标量场,它在确定暗物质的遗迹丰度方面起着重要作用。我们分析了直接,间接和对撞机搜索的暗物质的光的现象。在这个框架中,暗物质候选者是狄拉克粒子,它是质量为$m_{χ_1^0}\lesssim 1.1\,\text{TeV}$的新单重态-二重态场的混合物。我们发现,这个模型的允许参数空间是更广泛的比著名的马约拉纳暗物质的情况。

英文摘要:

We examine an extension of the Standard Model that addresses the dark matter puzzle and generates Dirac neutrinos masses through the radiative seesaw mechanism. The new field content includes a scalar field that plays an important role in setting the relic abundance of dark matter. We analyze the phenomenology in the light of direct, indirect, and collider searches of dark matter. In this framework, the dark matter candidate is a Dirac particle that is a mixture of new singlet-doublet fields with mass $m_{χ_1^0}\lesssim 1.1\,\text{TeV}$. We find that the allowed parameter space of this model is broader than the well-known Majorana dark matter scenario.

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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