模拟大气中微子相互作用：矢量和轴向核子形状因子的对偶约束参数化
Modeling Atmospheric Neutrino Interactions: Duality Constrained Parameterization of Vector and Axial Nucleon Form Factors
摘要：
我们提出了矢量和轴向核子形状因子的新参数化。我们保持一个很好的描述的形状因子在低动量转移，核子的空间结构是很重要的，并使用Nachtman标度变量有关弹性和非弹性形状因子和夸克强子的对偶性约束在高动量转移的夸克结构占主导地位。我们使用新的矢量形状因子重新提取更新的值的轴向形状因子从中微子实验氘。我们从中微子和π介子电产生实验中得到了更新的世界平均值M_A = 1.0144 +-0.0136GeV/c2。我们的参数化在模拟大气中微子相互作用（例如中微子振荡实验）中是有用的。
英文摘要：
We present new parameterizations of vector and axial nucleon form factors. We maintain an excellent descriptions of the form factors at low momentum transfers, where the spatial structure of the nucleon is important, and use the Nachtman scaling variable ξto relate elastic and inelastic form factors and impose quark-hadron duality constraints at high momentum transfers where the quark structure dominates. We use the new vector form factors to re-extract updated values of the axial form factor from neutrino experiments on deuterium. We obtain an updated world average value from neutrino and pion electroproduction experiments of M_A = 1.0144 +- 0.0136 GeV/c2. Our parameterizations are useful in modeling atmospheric neutrino interactions (e.g. for neutrino oscillations experiments)
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