Regular Article - Theoretical Physics
Identical-particle (pion and kaon) femtoscopy in Pb–Pb collisions at = 5.02 TeV with Therminator 2 modeled with (3+1)D viscous hydrodynamics
Indian Institute of Technology Bombay, 400076, Mumbai, India
Accepted: 27 November 2021
Published online: 24 December 2021
The three-dimensional femtoscopic correlations of pion and kaons are presented for Pb–Pb collisions at = 5.02 TeV within the framework of (3+1)D viscous hydrodynamics combined with THERMINATOR 2 code for statistical hadronization. The femtoscopic radii for pions and kaons are obtained as a function of pair transverse momentum and centrality in all three pair directions. The radii showed a decreasing trend with an increase of pair transverse momentum and transverse mass. for all centralities. These observations indicate the presence of strong collectivity. A simple effective scaling of radii with pair transverse mass in the model (without hadron cascade stage) was observed for both pion and kaons.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021