论文标题
在电子对撞机上的半包含深度非弹性散射中的固有不对称性
Intrinsic asymmetries in semi-inclusive deeply inelastic scattering at the Electron-Ion Collider
论文作者
论文摘要
我们计算了本文中立的中性喷气生产半含有深层弹性散射过程。中性电流意味着相互作用可以由光子介导，$ z^0 $ -BOSON及其干扰。假定初始电子是极化的，然后被带有旋转1/2的目标粒子散射。通过应用共线膨胀形式主义，将计算在量子染色体动力学模型中进行到扭曲3水平，其中考虑了多个Gluon散射，并自动获得量规链路。获得差分横截面后，我们介绍了内在不对称的定义。该数量揭示了夸克内在横向动量的分布中的不对称性。我们发现这些不对称性可以用横向动量依赖的Parton分布函数和电动轴耦合表示。结果，我们的计算提供了一组新数量，用于分析Parton分布功能和Electroweak耦合。同时了解强烈的非弹性散射过程中的强烈弱相互作用和强烈的相互作用是有帮助的。
We calculate the neutral current jet production semi-inclusive deeply inelastic scattering process in this paper. Neutral current implies that interactions can be mediated by the photon, $Z^0$-boson and their interference. The initial electron is assumed to be polarized and then scattered off by a target particle with spin-1/2. Calculations are carried out up to twist-3 level in the quantum chromodynamics parton model by applying the collinear expansion formalism where multiple gluon scattering is taken into account and gauge links are obtained automatically. After obtaining the differential cross section, we introduce the definition of the intrinsic asymmetry. This quantity reveals the asymmetry in the distribution of the quark intrinsic transverse momentum. We find that these asymmetries can be expressed in terms of the transverse momentum dependent parton distribution functions and the electroweak couplings. As a result, our calculations provide a set of new quantities for analyzing the parton distribution functions and the electroweak couplings. It is helpful to understand the hadronic weak interactions and strong interactions in the deeply inelastic scattering process simultaneously.
