Understanding the Characteristics of Multiple Production of Light Hadrons in Cu + Cu Interactions at Various RHIC Energies: A Model-based Analysis

TL;DR

This paper analyzes light hadron production in Cu+Cu collisions at RHIC energies using a model-based approach, comparing results with experimental data and other theoretical models to understand particle production mechanisms.

Contribution

It applies a version of the Sequential Chain Model to analyze transverse momentum spectra and nuclear modification factors across multiple energies and centralities, offering a comparative perspective.

Findings

Modest agreement between model results and experimental data.

Analysis of $p_T$-spectra and ratio-behaviors at various energies.

Comparison with pQCD-based approaches like Vitev's model.

Abstract

Experiments involving copper-copper collisions at the RHIC-BNL (USA) at energies $\sqrt{s_{NN}}$ = 22.5, 62 and 200 GeV have produced a vast amount of high-precision data which are to be analysed in the light of various competing models in the domain of multiparicle production scenario. We have chosen to analyse here the measured data on the $p_T$ -spectra of various light and non-strange secondaries at various energies mentioned above, some of their very important ratio-behaviours at the various centralities of the collisions and the nuclear modification factors $R_{AA}$ and $R_{CP}$ in the light of a version of the Sequential Chain Model (SCM). The agreements between the measured data and model-based results are generally found to be modestly satisfactory. Besides, our obtained results have also been compared with results based upon two approaches with strong standard model flavour, of which one is purely pQCD-oriented and is forwarded by Vitev.