Polarized jet fragmentation functions
Polarized jet fragmentation functions
复制标题
极化射流破碎函数
DOI：
10.1016/j.physletb.2020.135756
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发表时间：
2020-05
影响因子：
4.4
通讯作者：
Z. Kang;Kyle Lee;Fanyi Zhao
中科院分区：
文献类型：
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作者：
Z. Kang;Kyle Lee;Fanyi Zhao
我们发展的理论框架需要研究的强子分布与一般的偏振内喷流，有和没有横向动量测量相对于标准喷流轴。本文的关键发展，被称为“极化射流破碎功能”，开辟了新的机会，研究共线和横向动量相关（TMD）破碎功能。作为发展框架的两个例子，我们研究了两种碰撞中喷注内部纵向极化共线Λ和横向极化TMD Λ的产生。我们发现，这两个观测值有很高的潜力，在约束自旋相关的碎裂功能与相当大的不对称性预测，特别是在未来的电子离子对撞机。
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 bothppandepcollisions. 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.