论文标题
QED培养基在（抗）中微子核和电子核散射中：核子上的弹性散射
QED medium effects in (anti)neutrino-nucleus and electron-nucleus scattering: elastic scattering on nucleons
论文作者
论文摘要
解释当前和未来的中微子振荡和电子散射实验需要了解Lepton-Nucleon和Lepton-Nucleus相互作用的知识。我们研究了带电颗粒与核培养基之间的光子的交换，以（抗）中微子，电子和穆恩诱导的大核内中微子 - 诱导的反应。与领先的横截面，低能模式相比，电磁耦合常数$α$正式抑制了量子电动力学（QED） - 中间贡献，而低能模式和核尺寸通过量级来增强效果。他们需要适当的红外正规化，我们将其作为筛选原子长度尺度或更高的电磁相互作用的筛选。我们为（抗）中微子核和带电的Lepton-Nucleus横截面的变形提供了近似的分析表达式，并评估了QED-MEDIUM效应的筛查量表的实际值，这是筛选量表的现实值，以用核内的核子弹性散射。我们发现了新的成分至百分比效应，在（抗）中微子核或电子核散射中均未考虑这些效应。
Interpretation of current and future neutrino oscillation and electron scattering experiments requires knowledge of lepton-nucleon and lepton-nucleus interactions at the percent level. We study the exchange of photons between charged particles and the nuclear medium for (anti)neutrino-, electron-, and muon-induced reactions inside a large nucleus. While quantum electrodynamics (QED)-medium contributions are formally suppressed by two powers of the electromagnetic coupling constant $α$ when compared to the leading-order cross sections, low-energy modes and the nuclear size enhance the effect by orders of magnitude. They require a proper infrared regularization, which we implement as a screening of the electromagnetic interactions at atomic length scales or above. We provide approximate analytic expressions for the distortion of (anti)neutrino-nucleus and charged lepton-nucleus cross sections and evaluate the QED-medium effects for realistic values of the screening scale on the example of elastic scattering with nucleons inside the nucleus. We find new permille- to percent-level effects, which were not considered in either (anti)neutrino-nucleus or electron-nucleus scattering.
