论文标题
来自杜特隆的中性中微子散射
Neutral-Current Neutrino Scattering from the Deuteron
论文作者
论文摘要
使用结合相对论动力学的方法考虑了从杜特龙到达质子最终状态的中性中微子散射,并因此在相对较高的能量和动量上提供了可靠的建模。在这项工作中,将重点放在完全排他性的反应上,其中假定检测到最终状态的质子和中子。因此,可以重建入射中微子能量,中微子散射角和散射的中微子能量。结果表明,对于运动学的特定选择,反应主要是通过质子散射进行的,而对于运动学的其他选择,它主要来自中子。引入了特定的不对称性,以关注这些属性。这两个区域的测量值都有可能在动量转移到(GEV/C)$^2 $的动量时产生有价值的信息。特别是,横截面被证明对等轴轴向矢量形式非常敏感,并且敏感,但对磁性陌生形式偏差较少。与其他反应的比较,特别是改变电荷的中微子反应以及均衡性和竞争电子散射,有可能提供测试标准模型的新方法。
Neutral-current neutrino scattering from the deuteron leading to proton-neutron final states is considered using an approach that incorporates relativistic dynamics and consequently provides robust modeling at relatively high energies and momenta. In this work the focus is placed on the fully exclusive reaction where both the proton and neutron in the final state are assumed to be detected. Accordingly, the incident neutrino energy, the neutrino scattering angle and the scattered neutrino's energy can all be reconstructed. It is shown that for specific choices of kinematics the reaction proceeds mainly via scattering from the proton, while for other choices of kinematics it proceeds mainly from the neutron. Specific asymmetries are introduced to focus on these attributes. Measurements in both regions have the potential to yield valuable information on the nucleon's electroweak form factors at momentum transfers up to a (GeV/c)$^2$. In particular, the cross sections are shown to be very sensitive to the isoscalar axial-vector form factor, and sensitive but less so to the magnetic strangeness form factor. Comparisons with other reactions, specifically charge-changing neutrino reactions and both parity-conserving and -violating electron scattering, have the potential to provide new ways to test the Standard Model.