arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.00948hep-phastro-ph.SRhep-ex
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太阳中微子加速暗物质

Speeding Up Dark Matter With Solar Neutrinos

Yue Zhang

摘要:

我们提出了一种新的机制,利用太阳中微子加速暗物质,灵感来自中微子是最有活力的粒子从太阳与一个很好的理解的光谱。在中微子门户暗扇区模型中,我们表明,暗物质与亚GeV的质量可以加速的$pp$中微子的速度远高于$10^{-3}c$,并能够沉积足够大的能量在直接检测实验。这种机制的一个关键成分是存在于自然界中的稳定的暗物质束缚态的解离。由此产生的暗物质速度分布在形状上与太阳中微子光谱非常相似。作为应用,我们通过重新解释最近的PICO实验结果,导出了光暗物质相互作用的一个超前极限。

英文摘要:

We present a novel mechanism of using solar neutrinos to speed up dark matter, inspired by the fact that neutrinos are the most energetic particles from the Sun with a well-understood spectrum. In a neutrino portal dark sector model, we show that dark matter with sub-GeV mass could be accelerated by the $pp$ neutrinos to velocities well above $10^{-3}c$ and capable of depositing large enough energy at direct detection experiments. A crucial ingredient of this mechanism is the dissociation of stable dark matter bound states that exist in Nature. The resulting dark matter velocity distribution bears a strong resemblance in shape to the solar neutrino spectrum. As an application, we derive a leading limit on light dark matter interaction by reinterpreting a recent PICO experiment result.

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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