Fluctuating initial conditions in hydrodynamics for two-particle correlations

TL;DR

This paper explores how event-by-event hydrodynamics with fluctuating initial conditions can unify the understanding of long-range two-particle correlations observed in high-energy nuclear collisions, offering testable experimental predictions.

Contribution

It demonstrates the potential of fluctuating initial conditions in hydrodynamics to explain diverse correlation structures in nuclear collision data.

Findings

Hydrodynamics with fluctuations reproduces experimental correlation features

Unified explanation for nucleus-nucleus and p-p collision correlations

Proposes experimental tests for the hydrodynamic model

Abstract

Event-by-event hydrodynamics, with fluctuating initial conditions, has shown to nicely reproduce several features of experimentally observed quantities in high-energy nuclear collisions. Here we discuss how it may help to understand, in a unified way, the various structures observed in the long-range two-particle correlations, both in nucleus-nucleus and p-p collisions. Suggestions of how experimentally this description could be tested are also discussed.