Intermittency analysis of charged hadrons generated in Pb-Pb collisions at $\sqrt{s_{NN}}$= 2.76 TeV and 5.02 TeV using PYTHIA8/Angantyr

TL;DR

This study investigates local density fluctuations in Pb-Pb collisions at high energies using PYTHIA8/Angantyr, finding no evidence of critical point scaling behavior in the analyzed phase space.

Contribution

It applies intermittency analysis to simulated Pb-Pb collision data at two energies, providing insights into fluctuation patterns and critical phenomena.

Findings

No scaling behavior observed in particle generation.

Scaling exponent $ u$ independent of centrality.

Results suggest absence of critical point signals in the studied data.

Abstract

Local density fluctuations are expected to scale as a universal power-law when the system approaches critical point. Such power-law fluctuations are studied within the framework of intermittency through the measurement of normalized factorial moments in ($\eta$, $\phi$) phase space. Observations and results from the intermittency analysis performed for charged particles in Pb-Pb collisions using PYTHIA8/Angantyr at 2.76 TeV and 5.02 TeV are reported. We observe no scaling behaviour in the particle generation for any of the centrality studied in narrow p$_T$ bins. The scaling exponent $\nu$ shows no dependence on the centrality ranges.