Hadronic observables from Au+Au collisions at s(NN)**(1/2)=200 GeV and Pb+Pb collisions at s(NN)**(1/2)=5.5 TeV from a simple kinematic model

TL;DR

This paper employs a simple kinematic model combining superposition, relativistic geometry, and rescattering to predict hadronic observables in heavy-ion collisions at RHIC and LHC energies, showing good agreement with existing data.

Contribution

It introduces a straightforward model that effectively describes hadronic observables across different collision energies, providing a basis for future predictions at higher energies.

Findings

Model reproduces experimental trends at 200 GeV

Short hadronization time assumption improves model accuracy

Predictions for 5.5 TeV collisions are consistent with expectations

Abstract

A simple kinematic model based on superposition of p+p collisions, relativistic geometry and final-state hadronic rescattering is used to calculate various hadronic observables in s(NN)**(1/2) = 200 GeV Au+Au collisions and s(NN)**(1/2) = 5.5 TeV Pb+Pb collisions. The model calculations are compared with experimental results from several s(NN)**(1/2) = 200 GeV Au+Au collision studies. If a short hadronization time is assumed in the model, it is found that this model describes the trends of the observables from these experiments surprisingly well considering the model's simplicity. This also gives more credibility to the model predictions presented for s(NN)**(1/2) = 5.5 TeV Pb+Pb collisions.