AI 中文总结
本文介绍NRFF1.0碎裂函数集，基于NLO NRQCD和HF-NRevo方案，用于研究夸克偶素在中等及高横动量下的碎裂机制及喷注结构。
AI 中文摘要
我们讨论了一组新的公开可用的赝标量夸克偶素共线碎裂函数（FFs），即NRFF1.0数据集。它建立在重味非相对论演化（HF-NRevo）方案之上，该方案旨在通过中等和大横动量下的领头幂次碎裂来描述重强子形成。重夸克偶素产生自然涉及微扰和非微扰QCD动力学，从重$Q\ar{Q}$对的产生到其形成物理束缚态。在NRFF1.0中，非相对论量子色动力学（NRQCD）提供了在初始标度下计算FF输入的理论框架，随后通过HF-NRevo方案进行演化。这一设置为研究中等到高横动量区域中潜在的部分子层级和喷注结构提供了精确基线。对部分子道和重味阈值的显式处理使得该框架特别适用于探索夸克偶素喷注内碎裂、喷注淬灭敏感性、能量损失机制以及夸克-胶子等离子体中介质修正碎裂模式的出现。
英文摘要
We discuss a new family of publicly available collinear fragmentation functions (FFs) for pseudoscalar quarkonia, the NRFF1.0 set. It builds upon the Heavy-Flavor Non-Relativistic evolution (HF-NRevo) scheme, designed to describe heavy-hadron formation through leading-power fragmentation at moderate and large transverse momentum. Heavy-quarkonium production naturally involves both perturbative and non-perturbative QCD dynamics, from the production of the heavy $Q\bar{Q}$ pair to its formation into a physical bound state. Within NRFF1.0, Non-Relativistic Quantum Chromodynamics (NRQCD) provides the theoretical framework for calculating the FF inputs at the initial scale, which are subsequently evolved through the HF-NRevo scheme. This setup provides a precision baseline for investigating the underlying partonic hierarchy and jet structure across the moderate- to high-transverse-momentum regime. The explicit treatment of partonic channels and heavy-flavor thresholds makes this framework particularly suitable for exploring quarkonium-in-jet fragmentation, jet-quenching sensitivity, energy-loss mechanisms, and the emergence of medium-modified fragmentation patterns in the quark-gluon plasma.
Comments7 pages, 2 figures. Proceedings of the 33rd International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2026), 4-8 May 2026, Bologna, Italy
