arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.07920hep-phastro-ph.CO
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右手中微子暗物质、中微子质量和2HDM中的非标准宇宙学

Right-handed Neutrino Dark Matter, Neutrino Masses, and non-Standard Cosmology in a 2HDM

G. Arcadi, S. Profumo, F. S. Queiroz, C. Siqueira

摘要:

本文在双希格斯玻色子模型中研究了弱尺度右手中微子的暗物质现象。直接探测实验中的预期信号与通常的自旋无关和自旋相关分类不同,因为与夸克的散射取决于暗物质的自旋。暗物质遗迹密度是由热冻结和非标准宇宙学的存在所决定的,在非标准宇宙学中,阿贝尔规范对称性是暗物质产生机制的关键。我们表明,这样的对称性使我们能够同时解决中微子质量和一般两个希格斯双重模型的建设存在的味道问题。最后,我们勾勒出参数空间的区域,服从碰撞器,微扰么正性和直接检测约束。

英文摘要:

We explore the dark matter phenomenology of a weak-scale right-handed neutrino in the context of a Two Higgs Doublet Model. The expected signal at direct detection experiments is different from the usual spin-independent and spin-dependent classification since the scattering with quarks depends on the dark matter spin. The dark matter relic density is set by thermal freeze-out and in the presence of non-standard cosmology, where an Abelian gauge symmetry is key for the dark matter production mechanism. We show that such symmetry allows us to simultaneously address neutrino masses and the flavor problem present in general Two Higgs Doublet Model constructions. Lastly, we outline the region of parameter space that obeys collider, perturbative unitarity and direct detection constraints.

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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