Characterizing the initial and final state effects of relativistic nuclear collisions

TL;DR

This paper uses the AMPT model to analyze how initial and final state effects influence various correlation measures in relativistic Au+Au collisions, highlighting the importance of experimental data for constraining theoretical models.

Contribution

It provides a detailed study of correlation effects in nuclear collisions and discusses the sensitivity of these correlations to non-flow effects using the HIJING model.

Findings

Correlations can constrain initial and final state effects.

Sensitivity to non-flow effects varies with correlation type.

Experimental measurements are crucial for model validation.

Abstract

The Multi-Phase Transport model (AMPT) is used to study the final state effects on the Symmetric Correlations (SC), Asymmetric Correlations (ASC), Normalized Symmetric Correlations (NSC), and Normalized Asymmetric Correlations (NASC) in Au+Au collisions at 200~GeV. The correlators' sensitivity to non-flow effects associated with long- and short-range non-flow correlations are also discussed using the HIJING model. The results indicate that SC, ASC, NSC, and NASC can give accompanying constraints for initial and final state effects. In addition, conducting further detailed experimental measurements spanning a broad range of collision systems and beam energies will serve as an additional constraint for the theoretical models' calculations.