Calculating charged particle observables using modified Wood Saxon model in HIJING for U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV

TL;DR

This paper enhances the HIJING model with spherical harmonics in the Wood Saxon distribution to analyze U+U collisions at RHIC, revealing configuration-dependent variations in particle observables.

Contribution

The study introduces a modified HIJING model incorporating spherical harmonics to explore configuration effects in U+U collisions at RHIC energies.

Findings

Tip-tip collisions yield higher particle multiplicity in central events.

Body-body collisions produce higher yields in peripheral events.

Particle ratios remain unaffected by collision configuration.

Abstract

We have implemented spherical harmonics in default Wood Saxon distribution of the HIJING model and calculated various physical observables such as transverse momentum, charged particle multiplicity, nuclear modification factor and particle ratios for charged particles at top RHIC energy with collisions of Uranium (U) nuclei. Results have been compared with available experimental data. We observe that, a particular type of collision configuration can produce significant magnitude change in observables. We have noticed that the tip-tip configuration shows higher magnitude of particle yield in central collisions, while the body-body configuration shows higher value in the cases of peripheral collisions, with the flip in the trend occurring for the mid-central U+U collisions. We observe that particle ratios are independent of configuration type.