Effects of hadronic mean-field potentials on Hanbury-Brown-Twiss correlations in relativistic heavy-ion collisions

TL;DR

This study investigates how hadronic mean-field potentials influence HBT correlations in relativistic heavy-ion collisions, revealing their impact on emission timing, source eccentricity, and potential insights into particle interactions.

Contribution

It provides the first detailed analysis of hadronic mean-field effects on HBT correlations using a multiphase transport model with fitted parameters.

Findings

Hadronic mean-field potentials delay emission times.

They increase HBT radii from correlation functions.

Effects on energy dependence of HBT parameters are significant.

Abstract

With the parameters fitted by the particle multiplicity, the energy density at chemical freeze-out, and the charged particle elliptic flow, we have studied the effects of the hadronic mean-field potentials on the Hanbury-Brown and Twiss (HBT) correlation in relativistic heavy-ion collisions based on a multiphase transport model. The hadronic mean-field potentials are found to delay the emission time of the system and lead to large HBT radii extracted from the correlation function. Effects on the energy dependence of $R_o^2-R_s^2$ and $R_{o}/ R_{s}$ as well as the eccentricity of the emission source are discussed. The HBT correlations can also be useful in understanding the mean-field potentials of protons, kaons, and antiprotons as well as baryon-antibaryon annihilations.