发表机构
Northwestern University; Center for Frontiers in Nuclear Science, Stony Brook University; Department of Physics and Astronomy, University of California, Los Angeles; Mani L. Bhaumik Institute for Theoretical Physics, University of California, Los Angeles; School of Physics and Astronomy, Beijing Normal University; Key Laboratory of Multiscale Spin Physics (Beijing Normal University), Ministry of Education; Southern Center for Nuclear Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Science; Department of Physics and Astronomy, University of North Georgia（西北大学; 石溪大学前沿核科学中心; 加州大学洛杉矶分校物理与天文学系; 加州大学洛杉矶分校马尼·L·巴乌米克理论物理研究所; 北京师范大学物理与天文学院; 教育部多尺度自旋物理重点实验室（北京师范大学）; 中国科学院现代物理研究所南方核科学理论中心（SCNT）; 北乔治亚大学物理与天文学系）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究分析DIS单喷注度的领头强子化效应普适性，纳入Z、W电弱玻色子交换贡献，给出不同精度级别的理论结果，经Pythia模拟验证适用于HERA、EIC的宽运动学范围。
AI 中文摘要
我们研究深度非弹性散射（DIS）中τ₁和τ₁ₐ单喷注度全局事件形状的领头强子化效应结构，以及大质量电弱规范玻色子交换的贡献。τ₁中的领头强子化效应对硬散射运动学具有非平凡依赖，该运动学依赖可明确计算，因此τ₁、τ₁ₐ和DIS thrust中的领头强子化效应是普适的，由同一 underlying 形状函数描述。τ₁中额外的可计算运动学依赖为同时约束这些观测量中的强子化效应提供了独立的杠杆臂。我们给出N³LL+𝒪(αₛ²)精度级别的对应结果。我们扩展了此前的研究结果，纳入了大质量Z和W电弱规范玻色子的交换贡献，分别对应中性流（NC）和带电流（CC）DIS，还包含了𝒪(αₛ) QCD修正以得到N²LL+𝒪(αₛ)结果。我们将理论预测与Pythia模拟进行对比，证明了NC和CC DIS过程以及与HERA、EIC相关的宽运动学范围内领头强子化效应的普适性。
英文摘要
We study the structure of leading hadronization effects and the contributions of massive electroweak gauge boson exchange in the $τ_1$ and $τ_{1a}$ 1-Jettiness global event shapes for deep inelastic scattering (DIS). The leading hadronization effects in $τ_1$ acquire a non-trivial dependence on the hard scattering kinematics. This kinematic dependence is explicitly calculable, so that the leading hadronization effects in $τ_1$, $τ_{1a}$, and DIS thrust are universal and described by the same underlying shape function. The additional calculable kinematic dependence in $τ_1$ provides an independent lever arm for simultaneously constraining hadronization effects in these observables. We present corresponding results at the N$^3$LL+${\cal O}(α_s^2)$ level of accuracy. We extend previous results by including the contributions mediated by the exchange of the massive $Z$ and $W$ electroweak gauge bosons for neutral current (NC) and charged current (CC) DIS, respectively, including ${\cal O}(α_s)$ QCD corrections to obtain N$^2$LL+${\cal O}(α_s)$ results. We compare theoretical predictions to Pythia simulation and demonstrate the universality of leading hadronization effects across NC and CC DIS processes and a wide range of kinematics relevant to HERA and the EIC.
Comments40 pages, 14 figures
