高能核碰撞中纵向流动关联性的来源
摘要
The longitudinal structure of the quark-gluon plasma (QGP) consists of several components spanning various scales. However, its short-range features are often obscured by final-state non-flow correlations. Here, we introduce a data-driven approach to separate initial state structures from non-flow effects. The longitudinal structure is found having two distinct components: one that reflects the global twisted geometry of the QGP, and another that captures localized fluctuations in rapidity. The characteristics of this second component, contributing to short- and medium-range flow decorrelations, can be quantified by comparing collisions of nuclei with different shapes. This study represents the first successful attempt to disentangle long- and short-range flow decorrelations from non-flow backgrounds, providing new insights into the initial conditions of heavy-ion collisions.
引用
@article{arxiv.2408.15006,
title = {Sources of longitudinal flow decorrelations in high-energy nuclear collisions},
author = {Jiangyong Jia and Shengli Huang and Chunjian Zhang and Somadutta Bhatta},
journal= {arXiv preprint arXiv:2408.15006},
year = {2024}
}
备注
6 pages, 4 figures