Oscillating HBT radii and the time evolution of the source - sqrt(s_NN) = 200 GeV Au+Au data analyzed with azimuthally sensitive Buda-Lund hydro model

TL;DR

This paper analyzes particle spectra, flow, and HBT correlations in 200 GeV Au+Au collisions using an extended Buda-Lund hydrodynamical model, revealing anisotropic flow and source shape evolution.

Contribution

It introduces an ellipsoidally symmetric Buda-Lund model to simultaneously analyze spectra, flow, and HBT correlations in heavy-ion collisions.

Findings

Transverse flow is faster in the reaction plane.

Reaction zone is slightly more elongated in-plane.

Azimuthal dependence of HBT radii is characterized.

Abstract

Identified particle spectra of pions, kaons and (anti)protons, and elliptic flow and azimuthal dependence of Bose-Einstein or HBT correlations of identified pions in sqrt(s_NN) = 200 GeV Au+Au collisions is analyzed simultaneously using an ellipsoidally symmetric generalization of the Buda-Lund hydrodynamical model. The transverse flow is found to be faster in the reaction plane than out of plane, which results in a reaction zone that gets slightly more elongated in-plane than out of plane.