PoS - Proceedings of Science
Volume 422 - The Tenth Annual Conference on Large Hadron Collider Physics (LHCP2022) - Poster Session
Transverse spherocity dependence of global observables in heavy-ion collisions at the LHC using AMPT model
S. Prasad*, N. Mallick, D. Behera, R. Sahoo and S. Tripathy
Full text: pdf
Pre-published on: March 27, 2023
Published on: June 21, 2023
Abstract
Transverse spherocity is a tool that separates events based on geometrical shapes, i.e., jetty and isotropic events. Transverse spherocity based studies are widely understood in small systems like proton-proton (pp) collisions, but it is yet to be explored in heavy-ion collisions. In this work, we attempt to study different global observables in heavy-ion collisions, such as squared speed of sound, Bjorken energy density and kinetic freeze-out properties for different centrality classes as a function of transverse spherocity. This study has been carried out using a multi-phase transport model (AMPT) in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. Contrary to pp collisions, where jetty events are dominated, heavy-ion collisions are found to be dominated by isotropic events. Squared speed of sound and Bjorken energy density is found to be insensitive to transverse spherocity. In contrast, kinetic freeze-out properties such as transverse radial flow velocity and kinetic-freezeout temperature are found to be susceptive to transverse spherocity.
DOI: https://doi.org/10.22323/1.422.0331
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