arXiv 2102.054682021-02-10hep-ph

电磁中微子性质：新约束和新效应

Electromagnetic neutrino properties: new constraints and new effects

Alexander Studenikin

备注：: 6 pages in LaTex, based on the presentation at the 40th International Conference on High Energy Physics (ICHEP 2020), Prague, Czech Republic, 28 July - 6 August 2020. arXiv admin note: substantial text overlap with arXiv:1912.12497, arXiv:1912.12501
发表信息：: PoS(ICHEP2020)180

摘要：

中微子的电磁特性已经吸引了研究人员几十年的关注（参见[1]的评论）。然而，直到最近，无论是从地面中微子源的实验室实验还是从天体物理学中微子通量的观测中，都没有支持中微子非零电磁特性的迹象。在XENON1T探测器记录的低能量电子反冲数据的XENON1T合作报告了寻找新物理学的结果之后，情况发生了变化。结果表明，在反冲能量的已知背景上，有一个过量的事件，作为一种可能的解释，承认存在相当大的中微子磁矩，其值是现有实验室限制的数量级。本文简要介绍了中微子的电磁性质，着重讨论了中微子磁矩、电荷半径和毫荷数在地球实验和天体物理中的重要约束。在未来的实验中约束中微子的电磁特性的有前途的新的可能性进行了讨论。

英文摘要：

The electromagnetic properties of neutrinos have attracted considerable attention from researchers for many decades (see [1] for a review). However, until recently, there was no indication in favour of nonzero electromagnetic properties of neutrinos either from laboratory experiments with ground-based neutrino sources or from observations of astrophysical neutrino fluxes. The situation changed after the XENON collaboration reported [2] results of the search for new physics with low-energy electronic recoil data recorded with the XENON1T detector. The results show an excess of events over the known backgrounds in the recoil energy which, as one of the possible explanations, admit the presence of a sizable neutrino magnetic moment, the value of which is of the order of the existing laboratory limitations. In these short notes we give a brief introduction to neutrino electromagnetic properties and focus on the most important constraints on neutrino magnetic moments, charge radii and millicharges from the terrestrial experiments and astrophysical considerations. The promising new possibilities for constraining neutrino electromagnetic properties in future experiments are also discussed.

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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