论文标题
极化喷射碎片功能
Polarized jet fragmentation functions
论文作者
论文摘要
我们开发了研究在喷气机内部具有一般极化的Hadron所需的理论框架，并且在有和没有相对于标准射流轴的横向动量。本文中的关键发展称为“极化喷气碎片函数”，为研究共线和横向动量依赖（TMD）碎片函数开辟了新的机会。作为开发框架的两个示例，我们研究了纵向极化的外星$λ$，并在$ pp $和$ ep $ collisions中横向两极化的TMD $λ$生产。我们发现，这两个可观察力在约束自旋依赖性片段化函数方面具有很高的潜力，尤其是在未来的电子离子碰撞器上预测的可观的不对称性。
We develop the theoretical framework needed to study the distribution of hadrons with general polarization inside jets, with and without transverse momentum measured with respect to the standard jet axis. The key development in this paper, referred to as "polarized jet fragmentation functions", opens up new opportunities to study both collinear and transverse momentum dependent (TMD) fragmentation functions. As two examples of the developed framework, we study longitudinally polarized collinear $Λ$ and transversely polarized TMD $Λ$ production inside jets in both $pp$ and $ep$ collisions. We find that both observables have high potential in constraining spin-dependent fragmentation functions with sizeable asymmetries predicted, in particular, at the future Electron-Ion Collider.
