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arXiv 2406.07477hep-phhep-ex
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利用低能中微子-原子核散射数据研究中微子磁偶极子入口

Neutrino magnetic dipole portal with low energy neutrino nucleus scattering data

Ying-Ying Li, Yu-Feng Li, Shuo-Yu Xia

AI总结:

本文利用Dresden-II、COHERENT及暗物质直接探测实验的核与电子反冲数据,约束0.1–50 MeV惰性中微子的电子、μ和τ味磁偶极子入口参数空间。

摘要:

通过中微子磁偶极子入口与标准模型耦合的惰性中微子,已在各类实验中得到广泛研究。本文借助多种中微子散射实验中的核反冲和电子反冲,对质量处于0.1–50 MeV范围内的惰性中微子的这些相互作用进行细致审查。对于电子味专属偶极子入口,我们证明,在撇开目前尚未解决的理论不确定性的情况下,Dresden-II能够对m_N≲0.5 MeV给出领先约束。对于μ味情形,我们表明,利用CsI[Na]闪烁探测器收集的完整数据集(同时包含中微子束流的能量和时间结构),COHERENT实验可探测m_N在10–40 MeV范围内的独特参数区域。我们还利用暗物质直接探测实验对太阳中微子通量的测量,给出了对τ味偶极子入口参数区域的限制。

英文摘要:

Sterile neutrinos that couple to the Standard Model via the neutrino magnetic dipole portals have been extensively studied at various experiments. In this work, we scrutinize these interactions for sterile neutrinos in the mass range of $\unit[0.1]{}-\unit[50]{MeV}$ through the nuclear and electron recoils at various neutrino scattering experiments. For the $e$-flavor specific dipole portal, we demonstrate that Dresden-II can provide leading constraints for $m_N \lesssim \unit[0.5]{MeV}$, setting aside currently unresolved theoretical uncertainties. For the $μ$-flavor case, we show that the COHERENT experiment can probe a unique parameter region for $m_N$ in the range of $\unit[10]{}-\unit[40]{MeV}$ with the full dataset collected by the CsI[Na] scintillation detector, including both the energy and timing structure of the neutrino beam. We also present limits on the parameter regions of the $τ$-flavor dipole portal using measurements of the solar neutrino flux from dark matter direct detection experiments.

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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