Resonance Decay Contributions to Higher-Order Anisotropic Flow Coefficients

TL;DR

This paper demonstrates that simplified resonance decay calculations in hydrodynamic simulations of heavy-ion collisions can significantly reduce computational costs while maintaining accuracy in key observables.

Contribution

It introduces a method to perform resonance decay calculations with fewer particle species, enhancing efficiency without sacrificing accuracy.

Findings

Resonance decay calculations can be simplified with minimal loss of accuracy.

Computational efficiency is improved by a factor of 10.

The method preserves key spectral and flow anisotropy results.

Abstract

We show that in hydrodynamic simulations for relativistic heavy-ion collisions, strong resonance decay calculations can be performed with fewer species of particle resonances while preserving good accuracy in single particle spectra and flow anisotropies. Such partial resonance calculations boost computation efficiency by a factor of 10 which is essential for large scale event-by-event simulations.