Sources of longitudinal flow decorrelations in high-energy nuclear collisions

Autor:	Jia, Jiangyong, Huang, Shengli, Zhang, Chunjian, Bhatta, Somadutta
Rok vydání:	2024
Předmět:	Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment
Druh dokumentu:	Working Paper
Popis:	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. Comment: 6 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2408.15006 Zobrazit plný text záznamu View this record from Arxiv