论文标题
n $^3 $从SIDIS，DRELL-YAN和$ W^\ PM/Z $ DATA中提取SIVERS功能
N$^3$LO extraction of the Sivers function from SIDIS, Drell-Yan, and $W^\pm/Z$ data
论文作者
论文摘要
我们对极化半含量的深度非弹性散射（SIDIS），Pion诱导的偏振型选（DY）和$ W^\ pm/z $ BOSON生产数据进行全球分析，并提取$ u $，$ d $，$ s $的sivers功能，并为海quarks提取。我们使用n $^3 $ lo精度的横向动量依赖分解的框架。 QIU-STERMAN函数以从提取的Sivers函数中独立于模型的方式确定。我们还评估了SIDI中Sivers功能的预测符号变化的重要性。
We perform the global analysis of polarized Semi-Inclusive Deep Inelastic Scattering (SIDIS), pion-induced polarized Drell-Yan (DY), and $W^\pm/Z$ boson production data and extract the Sivers function for $u$, $d$, $s$ and for sea-quarks. We use the framework of transverse momentum dependent factorization at N$^3$LO accuracy. The Qiu-Sterman function is determined in a model-independent way from the extracted Sivers function. We also evaluate the significance of the predicted sign change of Sivers function in DY with respect to SIDIS.
