论文标题
$ \ sin^2θ_W$和中微子电磁互动中的$ \barν_e$ ns与不同的淬火因素
$\sin^2θ_W$ and neutrino electromagnetic interactions in CE$\barν_e$NS with different quenching factors
论文作者
论文摘要
最近，据报道，观察到大约2个KEV和低于反应器抗神经局部武器核核的相干散射的证据。我们分析了观察到的数据以估计弱混合角的值，并限制中微子毫米，磁矩，电荷半径和Anapole矩，从而有助于相干散射过程。当前，在如此低能量下的淬火因子尚无明确的模型。为此，我们考虑了猝灭因子的各种模型，并显示了它如何影响获得结果的解释。我们发现，在某些情况下，所获得的界限更强，而在其他情况下则显示出对特定淬火因子模型的选择和准确性的强烈依赖。结果是在如此低能的核后坐力下的第一个结果。我们提供了与现有模型相对应的不同淬火因素以及来自各种实验的数据的详尽列表。由于反应器中微子，这种功能对于使用核后坐力的任何新物理研究都将是有用的。
Recently, evidence for the observation of about 2 keV and below nuclear recoils from the coherent scattering of reactor anti-neutrinos off the germanium nuclei has been reported. We analyze the observed data to estimate the value of the weak mixing angle and constrain the neutrino millicharge, magnetic moment, charge radius and anapole moment contributing to the coherent scattering process. Currently, there is no definite model available for the quenching factor at such low energies. To this end, we consider various models of the quenching factor and show how it affects the interpretation of the obtained results. We find that the bounds obtained are stronger in some cases while comparable or weaker in other cases which show a strong dependence on the choice and accuracy of a particular quenching factor model. The results are the first at such low-energy nuclear recoils. We present an exhaustive list of analytical functions for the different quenching factors corresponding to the existing models and to the data from various experiments. Such functions will be useful for any new physics study using the nuclear recoils due to the reactor neutrinos.
