标题： 准弹性带电电流中微子-核子散射中的自旋不对称性 显示英文标题

标题： Spin asymmetries in quasielastic charged current neutrino-nucleon scattering

摘要： 这项工作涉及准弹性带电电流中微子-中子和反中微子-质子相互作用。 计算并分析了单重、双重和三重自旋不对称性。 自旋不对称性对核子的轴向形式因子敏感。 特别是，靶核-反冲核双重自旋不对称性和轻子-靶核-反冲核三重自旋不对称性强烈依赖于核子的轴向形式因子。 确实，这些成分的符号和形状取决于轴向质量参数。 所有不对称性，除了轻子极化外，都是适合研究由第二类电流贡献描述的非标准相互作用的良好可观测量。 显示英文摘要

摘要： The work concerns the quasielastic charged current neutrino-neutron and antineutrino-proton interactions. Single, double, and triple spin asymmetries are computed and analyzed. The spin asymmetries are sensitive to the axial form factor of the nucleon. In particular, the target-recoil double spin asymmetry and the lepton-target-recoil triple spin asymmetry depend strongly on the axial form factor of the nucleon. Indeed, the sign and shape of these components depend on the axial mass parameter. All the asymmetries, except the lepton polarization, are observables well suited to study the nonstandard interactions described by the second class current contribution.