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arXiv 2111.03331hep-phhep-th
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低能中微子在condensed matter系统上散射的中微子磁矩

Neutrino magnetic moments in low-energy neutrino scattering on condensed matter systems

Georgy Donchenko, Konstantin Kouzakov, Alexander Studenikin

摘要:

在低能转移区,中微子在电子和原子核上的弹性散射截面对中微子的电磁性质非常敏感。特别是,中微子的磁矩可以有效地搜索使用液体或固体探测器具有非常低的能量阈值。我们提出的形式主义,包括中微子磁矩的贡献,在理论上处理的低能弹性中微子散射凝聚物质的目标。采用动态结构因子的概念来描述目标中的集体效应。数值计算了氚在超流$^4$ He上的反中微子散射微分截面。我们发现,$10^{-11}μ_B$量级的中微子磁矩强烈地影响着截面。我们的结果可用于寻找中微子磁矩在未来的低能中微子散射实验与液体或固体目标。

英文摘要:

The cross sections of elastic neutrino scattering on electrons and nuclei in the regime of low-energy transfer are known to be very sensitive to neutrino electromagnetic properties. In particular, the magnetic moment of the neutrino can be effectively searched using liquid or solid detectors with a very low energy threshold. We present the formalism that incorporates the neutrino magnetic moment contribution in the theoretical treatment of the low-energy elastic neutrino scattering on a condensed-matter target. The concept of the dynamic structure factor is employed to describe the collective effects in the target. The differential cross section for tritium antineutrino scattering on the superfluid $^4$He is calculated numerically. We find that the neutrino magnetic moment of the order of $10^{-11}μ_B$ strongly affects the cross section. Our results can be used in the search of neutrino magnetic moments in future low-energy neutrino scattering experiments with liquid or solid targets.

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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