论文标题
迈向中国电子离子对撞机的三维核子结构：对Sivers功能的研究
Towards three-dimensional nucleon structures at the Electron-Ion Collider in China: A study of the Sivers function
论文作者
论文摘要
横向动量依赖性的Parton分布函数（TMDS）在动量空间中提供了核子的三维成像。由于其在理解核子的自旋结构的基本意义，因此TMD的精确测量被认为是中国提议的电子离子撞机（EICC）的主要物理主题之一。在本文中，我们研究了EICC未来的半包含深度非弹性散射（SIDIS）对TMD提取的影响。以Sivers的作用为例，我们重新介绍了World Sidis数据，该数据是模拟EICC数据的输入。通过对世界数据和EICC模拟数据进行联合分析，我们定量证明，可以精确确定Sivers功能的各种夸克风味，尤其是该地区的Sea Quarks，$ x> 0.005 $，直接由EICC覆盖。
Transverse momentum-dependent parton distribution functions (TMDs) provide three-dimensional imaging of the nucleon in the momentum space. With its fundamental importance in understanding the spin structure of the nucleon, the precise measurement of TMDs is considered as one of the main physics topics of the proposed Electron-Ion Collider in China (EicC). In this paper, we investigate the impact of future semi-inclusive deep inelastic scattering (SIDIS) data from EicC on the extraction of TMDs. Taking the Sivers function as an example, we revisited the world SIDIS data, which serves as the input for the simulated EicC data. By performing a combined analysis of the world data and the EicC simulated data, we quantitatively demonstrate that the Sivers functions can be precisely determined for various quark flavors, especially for sea quarks, in the region, $x>0.005$, directly covered by the EicC.
