论文标题

中微子探测器的虚弱中微子门户暗物质

Feeble neutrino portal dark matter at neutrino detectors

论文作者

Bandyopadhyay, Priyotosh, Chun, Eung Jin, Mandal, Rusa

论文摘要

我们以最小的田间含量探索中微子门户的暗物质(DM),其中有两个黑暗区域颗粒与右手中微子耦合。假设它们与标准模型(SM)颗粒相互作用的微弱性质,我们分析了观察到的DM遗物密度的冻结产生,其特征在于三种不同类别的特征,具体取决于主要的生产机制。该门户网站可在Kamland,Super-Kamiokande和Icecube等中微子探测器上提供有趣的签名,从标量DM的较晚衰减到Fermion DM和SM Neutrino。来自宇宙和银河系起源的这种中微通量光谱在将来的实验中会产生异常信号。

We explore the neutrino portal dark matter (DM) at its minimum of field content having two dark sector particles coupled to a right-handed neutrino. Assuming the feeble nature of their interactions with the standard model (SM) particles, we analyze the freeze-in production of the observed DM relic density characterized by three different categories depending on the major production mechanisms. The portal provides interesting signatures at the neutrino detectors like KamLAND, Super-Kamiokande and IceCube, from a very late decay of the scalar DM to the fermion DM and the SM neutrino. Such neutrino flux spectrum from the cosmic and galactic origins can produce anomalous signals at future experiments.

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