论文标题
对核子上电子(抗)中微子散射的准确评估
An accurate evaluation of electron (anti-)neutrino scattering on nucleons
论文作者
论文摘要
我们尽可能准确地讨论电子(抗)中微子在核子上的准弹性散射的横截面,在抗肿瘤的情况下,也称为β衰变。我们专注于中度能量范围从几个MEV到数百个MEV,其中包括反应堆和超新星的中微子。我们评估了横截面的不确定性,这与实验进步和日益大的统计样本有关。我们估计二等电流的影响,表明它们对于当前应用很小,可以忽略不计。
We discuss as accurately as possible the cross section of quasi-elastic scattering of electron (anti-)neutrinos on nucleons, also known as inverse beta decay in the case of antineutrinos. We focus on the moderate energy range from a few MeV up to hundreds of MeV, which includes neutrinos from reactors and supernovae. We assess the uncertainty on the cross section, which is relevant to experimental advances and increasingly large statistical samples. We estimate the effects of second-class currents, showing that they are small and negligible for current applications.