1. Sources of longitudinal flow decorrelations in high-energy nuclear collisions
- Author
-
Jia, Jiangyong, Huang, Shengli, Zhang, Chunjian, and Bhatta, Somadutta
- Subjects
Nuclear Theory ,High Energy Physics - Phenomenology ,Nuclear Experiment - Abstract
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
- Published
- 2024