论文标题
反应堆中微子相干弹性散射的第一个证据的含义
Implications of the first evidence for coherent elastic scattering of reactor neutrinos
论文作者
论文摘要
使用德累斯顿II核反应堆的抗神经胶质器，最新的证据表明NCC-1701锗检测器中有一致的弹性中微子核散射（CE $ν$ ns）与标准模型预期非常吻合。但是，我们表明，如果修改后的Lindhard模型描述了淬火因子，则可以实现$2σ$的提高数据。我们还将约束在光矢量或标量介体的参数空间上，并将其耦合到中微子和夸克，以及中微子磁矩。我们证明，通过将标准Lindhard模型的约束与通过对修改的Lindhard模型的两个参数进行边缘化的约束，对低后坐力能量下的淬火因子的约束非常敏感。
The recent evidence for coherent elastic neutrino-nucleus scattering (CE$ν$NS) in the NCC-1701 germanium detector using antineutrinos from the Dresden-II nuclear reactor is in good agreement with standard model expectations. However, we show that a $2σ$ improvement in the fit to the data can be achieved if the quenching factor is described by a modified Lindhard model. We also place constraints on the parameter space of a light vector or scalar mediator that couples to neutrinos and quarks, and on a neutrino magnetic moment. We demonstrate that the constraints are quite sensitive to the quenching factor at low recoil energies by comparing constraints for the standard Lindhard model with those by marginalizing over the two parameters of the modified Lindhard model.
