Transverse momentum spectra and suppression of charged hadrons in deformed Xe-Xe collisions at $\sqrt{s_{NN}}$ = 5.44 TeV using HYDJET++ model

TL;DR

This paper uses the HYDJET++ model to analyze transverse momentum spectra and suppression patterns of charged hadrons in deformed Xe-Xe collisions at 5.44 TeV, comparing results with experimental data and other models.

Contribution

It demonstrates the effectiveness of the HYDJET++ model in reproducing experimental observables in Xe-Xe collisions and explores the impact of collision geometry on hadron suppression.

Findings

HYDJET++ results match ALICE data at midrapidity.

Transverse momentum and suppression depend on collision centrality and geometry.

HYDJET++ outperforms AMPT in modeling charged hadron observables.

Abstract

In this study, we systematically investigate deformed Xe-Xe collisions at 5.44 TeV center of mass energy. We exploit the Monte Carlo HYDJET++ model to compute transverse momentum ($p_{T}$) distribution, nuclear modification factor $R_{AA}$ and relative suppression in terms of $R_{CP}$ as a function of transverse momentum and centrality of collision of charged hadrons in body-body and tip-tip geometrical configurations, respectively. We have compared HYDJET++ model results to those from ALICE experimental data and AMPT model (String-Melting version) results. Minimum bias Xe-Xe collisions show a suitable match with ALICE experimental data at midrapidity. Average transverse momentum ($\langle p_{T} \rangle$) show strong centrality dependence. The contribution of hard parton scatterings to the total charged hadron yield is discussed. Both nuclear modification factor $R_{AA}$ and relative suppression $R_{CP}$ show a clear dependence on centrality as well as transverse momentum. The charged hadron observables show a clear dependence on the geometrical configuration of the collisions. HYDJET++ model justifies experimental data more closely than the AMPT model.