arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1809.06385hep-phastro-ph.CO
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中微子层有多高?

How high is the neutrino floor?

C. Boehm, D. G. Cerdeno, P. A. N. Machado, A. Olivares-Del Campo, E. Perdomo, E. Reid

摘要:

本文计算了中微子区新物理模型对中微子-核相干弹性散射截面的贡献。我们使用这些信息来计算直接暗物质探测实验中所谓的中微子底的最大值,这决定了这些探测器何时对中微子背景敏感。在不同的简化中微子模型中考虑了所有相关的实验约束后,我们发现在标量介质的情况下,在质量低于10 GeV的暗物质区域,中微子底可以增加不同的数量级,然而,这种壮观的增强是受超新星边界的重新检查。载体介体的增加大约是两倍。根据这些结果,如果发现的信号远高于预期的标准模型中微子下限,则必须仔细检查未来通过直接探测实验探索低质量窗口的说法。

英文摘要:

In this paper, we compute the contribution to the coherent elastic neutrino-nucleus scattering cross section from new physics models in the neutrino sector. We use this information to calculate the maximum value of the so-called neutrino floor for direct dark matter detection experiments, which determines when these detectors are sensitive to the neutrino background. After including all relevant experimental constraints in different simplified neutrino models, we have found that the neutrino floor can increase by various orders of magnitude in the region of dark matter masses below 10 GeV in the case of scalar mediators, however, this spectacular enhancement is subject to the re-examination of supernovae bounds. The increase is approximately a factor of two for vector mediators. In the light of these results, future claims by direct detection experiments exploring the low-mass window must be carefully examined if a signal is found well above the expected Standard Model neutrino floor.

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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