论文标题
更新的QCD全局分析对单个横向旋转不对称i：提取$ \ tilde {h} $，以及SOFFER BOND BOND和LATTICE QCD的作用
Updated QCD global analysis of single transverse-spin asymmetries I: Extracting $\tilde{H}$, and the role of the Soffer bound and lattice QCD
论文作者
论文摘要
我们提出了对Cammarota等人，PRD 102，054002（2020）（JAM3D-20）中QCD全局分析的更新。 JAM3D-20同时包括横向动量依赖性和colinear Twist-3可观测值，这两种都对Hadron中的夸克 - 葡萄糖 - 夸克相关性敏感。在这项研究中，我们首次提取Twist-3手性奇数碎片函数$ \ tilde {h} $，通过合并来自Sidis的$ \ sinx_s $调制数据，以及其对质子proton碰撞产生的单个横向旋转不对称的贡献。我们还探讨了晶格QCD张量电荷计算的影响以及对我们的全球分析的柔和限制。我们发现，这两个约束都可以在我们的结果中适应，$ \ tilde {h} $在维持与Proton-Proton碰撞数据的数据方面起着关键作用。
We present an update to the QCD global analysis of single transverse-spin asymmetries presented in Cammarota, et al., PRD 102, 054002 (2020) (JAM3D-20). JAM3D-20 simultaneously included transverse momentum dependent and collinear twist-3 observables, both of which are sensitive to quark-gluon-quark correlations in hadrons. In this study we extract for the first time the twist-3 chiral odd fragmentation function $\tilde{H}$ by incorporating the $\sinϕ_s$ modulation data from SIDIS along with its contribution to the single transverse-spin asymmetry in pion production from proton-proton collisions. We also explore the impact of lattice QCD tensor charge calculations and the Soffer bound on our global analysis. We find that both constraints can be accommodated within our results, with $\tilde{H}$ playing a key role in maintaining agreement with the data from proton-proton collisions.
