Exploring the effect of hadron cascade-time on particle production in Xe+Xe collisions at $\sqrt{s_{\rm{NN}}}$ = 5.44 TeV through a multi-phase transport model

TL;DR

This paper investigates how the duration of hadronic interactions influences particle production and elliptic flow in Xe+Xe collisions at 5.44 TeV, using the AMPT model, highlighting the role of final state interactions.

Contribution

It introduces a detailed analysis of hadron cascade-time effects on particle ratios and elliptic flow in Xe+Xe collisions within the AMPT framework, emphasizing the importance of final state interactions.

Findings

Longer cascade-times increase elliptic flow at low and high transverse momentum.

Hadronic interactions significantly affect particle ratios and anisotropic flow.

Final state effects are crucial for understanding particle production in heavy-ion collisions.

Abstract

Heavy-ion collisions at ultra-relativistic energies provide extreme conditions of energy density and temperature to produce a deconfined state of quarks and gluons. Xenon (Xe) being a deformed nucleus further gives access to the effect of initial geometry on final state particle production. This study focuses on the effect of nuclear deformation and hadron cascade-time on the particle production and elliptic flow using A Multi-Phase Transport (AMPT) model in Xe+Xe collisions at $\sqrt{s_{\rm NN}}$ = 5.44 TeV. We explore the effect of hadronic cascade-time on identified particle production through the study of $p_{\rm T}$-differential particle ratios. The effect of hadronic cascade-time on the generation of elliptic flow is studied by varying the cascade-time between 5 and 25 fm/$c$. This study shows the final state interactions among particles generate additional anisotropic flow with increasing hadron cascade-time, especially at very low and high-$p_{\rm T}$.