arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2609.16753hep-ph

用强子锚定能量关联器探测局部粲强子化动力学

Probing Local Charm Hadronization Dynamics with Hadron-Anchored Energy Correlators

Robert Vertesi

首次发表
浏览论文内容

中文总结 AI 辅助

本文提出强子锚定能量关联器(HAEC)用于重味喷注,发现Λc+相对D0存在局部能量流抑制及标度转变,可区分重夸克质量与碎裂顶点起源。

中文摘要 AI 辅助

我们引入了强子锚定能量关联器(HAEC),这是碎裂能量关联器和半包含能量关联器框架的一种喷注受限实现,并将其应用于强子对撞中的重味标记喷注。利用\textsc{Pythia}~8对${\rm D}^0$和$\Lambda_c^+$标记喷注的模拟,我们发现相对于${\rm D}^0$,$\Lambda_c^+$周围的能量流存在显著且局部的抑制,随后出现一个尖锐的转变,其标度关系为$\theta_0\propto1/p_{\rm T}^{\rm jet}$,且对调谐参数依赖很小。传统的喷注轴径向分布显示出定性不同的色重连依赖性,表明HAEC对喷注轴效应的敏感性降低。底夸克区的研究可以区分重夸克质量起源与局部碎裂顶点起源。

英文摘要

We introduce the hadron-anchored energy correlator (HAEC), a jet-restricted realization of the fragmentation energy correlator and the semi-inclusive energy correlator frameworks, and apply it to heavy-flavor-tagged jets in hadron collisions. Using \textsc{Pythia}~8 simulations of ${\rm D}^0$- and $Λ_c^+$-tagged jets, we find a pronounced, localized suppression of energy flow around the $Λ_c^+$ relative to the ${\rm D}^0$, followed by a sharp transition scaling as $θ_0\propto1/p_{\rm T}^{\rm jet}$ with little tune dependence. The conventional jet-axis radial profile shows qualitatively different color-reconnection dependence, suggesting reduced sensitivity of HAEC to jet-axis effects. A beauty-sector study can distinguish a heavy-quark-mass origin from a local fragmentation-vertex origin.

发表机构

  • HUN-REN Wigner Research Centre for Physics(匈牙利科学院维格纳物理研究中心)

机构由 AI 辅助整理,请以论文原文为准。

补充信息

↑