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arXiv 2501.07591hep-ph
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探测超新星中微子助推暗物质与集体激发

Probing Supernova Neutrino Boosted Dark Matter with Collective Excitation

Jun-Wei Sun, Lei Wu, Yan-Hao Xu, Bin Zhu

AI总结:

本研究探索超新星中微子助推暗物质(SN$ν$BDM)的直接探测,计算其在半导体探测器中的等离激元激发速率并推导排除极限,发现对亚MeV暗物质的灵敏度显著增强。

摘要:

我们探索了超新星中微子助推暗物质(SN$ν$BDM)及其直接探测。在核心坍缩超新星期间,会发射大量中微子。这些超新星中微子可以通过其相互作用将其动能转移给轻暗物质,从而在中微子和暗物质实验中被探测到。由于高能中微子通量的指数抑制,大部分SN$ν$BDM所携带的动能落在MeV范围内。这可能在使用skipper-CCD的半导体探测器中产生集体激发信号。我们计算了由SN$ν$BDM诱导的等离激元激发速率,并推导了排除极限。与传统的直接探测实验相比,我们的结果在亚MeV暗物质的灵敏度方面呈现出显著增强。

英文摘要:

We explore the supernova neutrino-boosted dark matter (SN$ν$BDM) and its direct detection. During core-collapse supernovae, an abundance of neutrinos are emitted. These supernova neutrinos can transfer their kinetic energy to the light dark matter via their interactions, and thus are detected in the neutrino and dark matter experiments. Due to the exponential suppression of the high-energy neutrino flux, the kinetic energy carried by a large portion of SN$ν$BDM falls within the MeV range. This could potentially produce the collective excitation signals in the semiconductor detectors with the skipper-CCD. We calculate the plasmon excitation rate induced by SN$ν$BDM and derive the exclusion limits. In contrast with conventional neutrino and dark matter direct detection experiments, our results present a significant enhancement in sensitivity for the sub-MeV dark matter.

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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