论文标题
Lepton-Nucleon散射的轴向和矢量结构功能，Nufact 2021更新
Axial and Vector Structure Functions for Lepton-Nucleon Scattering, NuFact 2021 Update
论文作者
论文摘要
我们使用有效的前导订单Parton分布函数$ξ_w$的有效领先顺序Parton分布功能报告了非弹性中微子和电子核子散射横截面的现象学模型的更新（2021）。使用$ξ_w$缩放变量与低$ q^2 $的乘法$ k $因子结合使用$ξ_w$缩放变量进行很好的描述。该模型描述了从非常高的$ q^2 $到非常低的$ q^2 $以及$ q^2 = 0 $ q^2 = 0 $ popopoproduction区域，介绍了所有无弹性的 - 勒普顿 - 核子散射数据（HERA/NMC/BCDMS/SLAC/JLAB）。该模型已开发用于在少数GEV区域的中微子振荡实验的分析中使用。 2021更新说明了轴向和向量结构函数之间的差异，这使其与中微子核子总横截面测量值更加一致。该模型主要是针对HADRONIC FINST State Masses $ W $高于1.8 GEV的。但是，使用其他参数，该模型还描述了共振区域中的$平均$中微子交叉部分，降至$ W $ = 1.4 GEV。
We report on an update (2021) of a phenomenological model for inelastic neutrino- and electron-nucleon scattering cross sections using effective leading order parton distribution functions with a new scaling variable $ξ_w$. Non-perturbative effects are well described using the $ξ_w$ scaling variable in combination with multiplicative $K$ factors at low $Q^2$. The model describes all inelastic charged-lepton-nucleon scattering data (HERA/NMC/BCDMS/SLAC/JLab) ranging from very high $Q^2$ to very low $Q^2$ and down to the $Q^2=0$ photo-production region. The model has been developed to be used in analyses of neutrino oscillation experiments in the few GeV region. The 2021 update accounts for the difference between axial and vector structure functions which brings it into much better agreement with neutrino-nucleon total cross section measurements. The model has been developed primarily for hadronic final state masses $W$ above 1.8 GeV. However with additional parameters the model also describes the $average$ neutrino cross sections in the resonance region down to $W$=1.4 GeV.
