论文标题
CONUS实验的中微子电磁特性的第一个上微子限制
First upper limits on neutrino electromagnetic properties from the CONUS experiment
论文作者
论文摘要
我们使用从Conus encerium探测器获得的数据，即有效中微子磁矩的上限以及有效的中微子Millicharge的上限的上限，即使用中微子 - 电子散射的中微子电磁特性以及有效中微子的上限限制。电子抗神经支出是从德国Brokdorf核电站的3.9 GW $ _ \ MATHRM {TH} $反应堆核心发出的。 Conus低背景探测器位于距反应堆核心中心距离17.1 m的位置。分析的数据集包括在反应堆期间收集的689.1千克$ \ cdot $ d，在反应堆关闭期间收集的131.0 kg $ \ cdot $ d在2至8 keV $ _ {ee} $的能量范围内收集。使用当前统计数据，我们能够确定有效中微子磁矩$μ_ν<7.5 \ cdot10^{ - 11} \，μ_b$在90％置信度下的上限。从第一个磁矩限制开始，我们可以在$ \ vertq_ν\ vert <3.3 \ cdot10^{ - 12} \，e_0 $的中微子milicharge上得出上微子毫米上的上限。
We report first constraints on neutrino electromagnetic properties from neutrino-electron scattering using data obtained from the CONUS germanium detectors, i.e. an upper limit on the effective neutrino magnetic moment and an upper limit on the effective neutrino millicharge. The electron antineutrinos are emitted from the 3.9 GW$_\mathrm{th}$ reactor core of the Brokdorf nuclear power plant in Germany. The CONUS low background detectors are positioned at 17.1 m distance from the reactor core center. The analyzed data set includes 689.1 kg$\cdot$d collected during reactor ON periods and 131.0 kg$\cdot$d collected during reactor OFF periods in the energy range of 2 to 8 keV$_{ee}$. With the current statistics, we are able to determine an upper limit on the effective neutrino magnetic moment $μ_ν< 7.5\cdot10^{-11}\,μ_B$ at 90% confidence level. From this first magnetic moment limit we can derive an upper bound on the neutrino millicharge of $\vert q_ν\vert < 3.3\cdot10^{-12}\,e_0$.
