论文标题
Nugen实验对相干弹性中微子核散射的第一个结果
First results of the nuGeN experiment on coherent elastic neutrino-nucleus scattering
论文作者
论文摘要
Nugen实验的目的是使用Kalinin核电站的反应器中的抗神经替氏菌研究中微子性质。实验设置位于距3.1 GWTH反应堆芯中心约11米处。使用低纯度锗检测器检测到反应堆的抗神经毒素的散射。被动和主动的屏蔽用于抑制来自周围材料和宇宙辐射的各种背景。提出了实验设置的描述以及第一个结果。已经比较了用反应堆（94.50天）和反应堆OFF（47.09天）获得的制度的数据。没有观察到两个数据集的光谱之间的显着差异，即未检测到相干弹性中微子核散射的正信号。在标准模型假设下，已经设置了驻锗中的淬灭参数k <0.26（90 \％c.l.）上中微子散射的上微子散射。
The nuGeN experiment is aimed to investigate neutrino properties using antineutrinos from the reactor of the Kalinin Nuclear Power Plant. The experimental setup is located at about 11 meters from the center of the 3.1 GWth reactor core. Scattering of the antineutrinos from the reactor is detected with low energy threshold high purity germanium detector. Passive and active shieldings are used to suppress all kinds of backgrounds coming from surrounding materials and cosmic radiation. The description of the experimental setup together with the first results is presented. The data taken in regimes with reactor ON (94.50 days) and reactor OFF (47.09 days) have been compared. No significant difference between spectra of two data sets is observed, i.e. no positive signals for coherent elastic neutrino-nucleus scattering are detected. Under Standard Model assumptions about coherent neutrino scattering an upper limit on a quenching parameter k < 0.26 (90 \% C.L.) in germanium has been set.
