Higher moments on strangeness fluctuation using PNJL model

TL;DR

This paper investigates higher moments of strangeness fluctuations in quark-gluon plasma using the PNJL model, comparing theoretical results with experimental data and analyzing related conserved charge correlations.

Contribution

It introduces a detailed analysis of skewness and kurtosis of strangeness fluctuations within the PNJL model, highlighting their energy dependence and correlation features.

Findings

Skewness and kurtosis show similar energy-dependent features in the PNJL model.

The model's fluctuation ratios align with experimental observations.

Cross correlations among conserved charges are discussed in detail.

Abstract

The strangeness fluctuation of QGP matter has been investigated in three flavor finite volume Polyakov loop extended Nambu-Jona--Lasinio model. The ratio of fourth order moment to second order moment (kurtosis) and the third order moment to second order moment (skewness) of strangeness fuctuations have been studied and compared with the experimental data. The cross correlations related to baryon number, strangeness and electric charge conservation have also been discussed. Skewness and kurtosis of strangeness fluctuation in PNJL model have similar features along the collision energy of heavy ion experiments.