PACIAE Model Predictions for Pb+Pb Collisions at LHC Compared to the Au+Au Collisions at RHIC

TL;DR

This paper uses the PACIAE model to simulate heavy-ion collisions at RHIC and LHC energies, providing predictions for Pb+Pb collisions based on validated Au+Au collision data.

Contribution

It extends the PACIAE model to predict Pb+Pb collision outcomes at LHC energies, validated against RHIC data.

Findings

Model accurately reproduces RHIC collision data

Predictions for LHC Pb+Pb collisions are consistent with expected trends

Provides reliable forecasts for charged particle distributions at LHC energies

Abstract

The parton and hadron cascade model PACIAE is used to simulate the 0-6, 15-25, and 35-45 % most central Au+Au collisions at \sqrt{s_{NN}}=19.6, 62.4, 130, and 200 GeV and the 0-10 % most central Pb+Pb collisions at \sqrt{s_{NN}}=5500 GeV. The calculated charged multiplicity and the charged particle transverse momentum distribution, pseudorapidity distribution, and extended longitudinal scaling for Au+Au collisions well agree with the corresponding PHOBOS data. Thus the above observables calculated for Pb+Pb collisions would be a reliable prediction.