Event-by-event hydrodynamics for heavy-ion collisions

TL;DR

This paper compares single-shot and event-by-event hydrodynamic calculations for heavy-ion collisions, demonstrating that combined flow measurements can reduce initial condition uncertainties.

Contribution

It introduces a method to use v2 and v3 measurements together to better constrain initial conditions in hydrodynamic models.

Findings

Single-shot and event-by-event calculations show comparable results for flow coefficients.

Using v2 and v3 together reduces initial condition ambiguities.

Event-by-event analysis provides more detailed insights into collision dynamics.

Abstract

We compare v2/{\epsilon}2 and v3/{\epsilon}3 from single-shot and event-by-event (2+1)-dimensional hydrodynamic calculations and discuss the validity of using single-shot calculations as substitutes for event-by-event calculations. Further we present a proof- of-concept calculation demonstrating that v2 and v3 together can be used to strongly reduce initial condition ambiguities.