论文标题

单包核和质子 - 普罗顿碰撞中的Twist-3不对称$ a_ {lt} $的数值研究

Numerical study of the twist-3 asymmetry $A_{LT}$ in single-inclusive electron-nucleon and proton-proton collisions

论文作者

Bauer, Brandon, Pitonyak, Daniel, Shay, Cody

论文摘要

我们提供了第一个严格的数值分析,用于电子 - 核素中的纵向 - 透明双旋$ a_ {lt} $,对于仅在最终状态下仅检测到单个PION,JET或PHOTON的情况下,对于只有单个PION,JET或PHOTON的情况。鉴于最近提取了某些以前未知的非扰动功能,我们能够从与$ a_ {lt} $相关的所有术语中进行贡献,并对Jefferson Lab(JLAB)12 GEV,Compass 12 Gev,Compass,Future Electron-ion Collider和相关性重型ION Collider进行现实预测。我们还将结果与JLAB 6 GEV测量进行了比较,这是此类反应的唯一数据。 $ a_ {lt} $的扭曲3性质使其成为探测哈子中Quark-Gluon-Quark相关性的潜在富有成果的途径,并提供了对QCD中动态夸克质量产生的见解。

We provide the first rigorous numerical analysis of the longitudinal-transverse double-spin asymmetry $A_{LT}$ in electron-nucleon and proton-proton collisions for the case where only a single pion, jet, or photon is detected in the final state. Given recent extractions of certain, previously unknown, non-perturbative functions, we are able to compute contributions from all terms relevant for $A_{LT}$ and make realistic predictions for the observable at Jefferson Lab (JLab) 12 GeV, COMPASS, the future Electron-Ion Collider, and the Relativistic Heavy Ion Collider. We also compare our results to a JLab 6 GeV measurement, which are the only data available for this type of reaction. The twist-3 nature of $A_{LT}$ makes it a potentially fruitful avenue to probe quark-gluon-quark correlations in hadrons as well as provide insights into dynamical quark mass generation in QCD.

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