论文标题

中微子质量和不对称的暗物质:使用惰性希格斯双重肌肉和高尺度有效性进行研究

Neutrino mass and asymmetric dark matter: study with inert Higgs doublet and high scale validity

论文作者

Banik, Amit Dutta, Roshan, Rishav, Sil, Arunansu

论文摘要

我们考虑标准模型的惰性Higgs Doublet(IHD)扩展,并伴随三个右手中微子和一个黑暗部门,由单重手工和标量组成,以提供深色物质,leptogentiss和中性质量的共同框架。右侧中微子与IHD的Yukawa耦合(在中间状态:80-500 GEV)负责解释观察到的Baryon不对称性,通过瘦肉发生,其耦合与黑暗扇区解释了暗物质的密度。 IHD的存在还通过辐射校正来解释中微子质量。我们发现,在这种情况下,对模型的高规模有效性的研究变得至关重要,因为它严重限制了参数空间。事实证明,也存在对IHD的DM遗物密度的小但非零的贡献。考虑到模型的暗物质,瘦肉生成,中微子质量和高尺度有效性的所有约束,我们进行了一项研究以找出可行的参数空间。

We consider an inert Higgs doublet (IHD) extension of the Standard Model accompanied with three right handed neutrinos and a dark sector, consisting of a singlet fermion and a scalar, in order to provide a common framework for dark matter, leptognesis and neutrino mass. While the Yukawa coupling of the right handed neutrinos with IHD (having mass in the intermediate regime: 80-500 GeV) is responsible for explaining the observed baryon asymmetry through leptogenesis, its coupling with the dark sector explains the dark matter relic density. The presence of IHD also explains the neutrino mass through radiative correction. We find that study of the high scale validity of the model in this context becomes crucial as it restricts the parameter space significantly. It turns out that there exists a small, but non-zero contribution to the relic density of DM from IHD too. Considering all the constraints from dark matter, leptogenesis, neutrino mass and high scale validity of the model, we perform a study to find out the viable parameter space.

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