Transverse momentum distribution and elliptic flow of charged hadrons in U+ U collisions at √sNN=193 GeV using HYDJET++

Abstract

Recent experimental observations of the charged hadron properties in U+U collisions at 193 GeV contradict many of the theoretical models of particle production including two-component Monte Carlo Glauber model. The experimental results show a small correlation between the charged hadron properties and the initial geometrical configurations (e.g. body-body, tip-tip etc.) of U +U=collisions. In this article, we have modified the Monte Carlo HYDJET++ model to study the charged hadron production in U + U collisions at 193 GeV center-of-mass energy in tip-tip and body-body initial configurations. We have modified the hard as well as soft production processes to make this model suitable for U +U collisions. We have calculated the pseudorapidity distribution,transverse momentum distribution and elliptic flow distribution of charged hadrons with different control parameters in various geometrical configurations possible for U + U collision. We find that HYDJET++ model supports a small correlation between the various properties of charged hadrons and the initial geometrical configurations of U +U collision. Further, the results obtained in modified HYDJET++ model regarding dnch/dη and elliptic flow (v2) suitably matches with the experimental data of U + U collisions in minimum bias configuration.