Probing the onset of hydrodynamization in peripheral p-Pb collisions at $\sqrt{s_{NN}} =$ 5.02 TeV

Fuente: arXiv
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Main Authors: Hatwar, Nikhil, Dash, Sadhana, Nandi, Basanta Kumar
Format: Preprint
Published: 2024
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_version_ 1866910259038126080
author Hatwar, Nikhil
Dash, Sadhana
Nandi, Basanta Kumar
author_facet Hatwar, Nikhil
Dash, Sadhana
Nandi, Basanta Kumar
contents An attempt has been made to estimate the minimum size of the de-confined matter of Quark-Gluon Plasma (QGP) in small systems like p-Pb system that could be satisfactorily modeled with low-order hydrodynamics. The variation of second order transport coefficient of second order relativistic viscous hydrodynamics, the shear relaxation time has been utilized to study the sensitivity of experimental observables like elliptic flow coefficient. A representative system of p-Pb collisions at $\sqrt{s_{NN}} =$ 5.02 TeV, simulated with the state-of-art framework of JETSCAPE event generator was used to study the variation of elliptic flow coefficient for peripheral collisions. The soft sector dynamics was simulated using an initial condition, a pre-equilibrium stage, hydrodynamics and a hadron afterburner. The transverse momentum spectra and rapidity distribution was obtained for light flavored hadrons and compared with the experimental data. The increase in elliptic flow fluctuations indicate breakdown of fluid behavior at $dN/dy \approx 14$ for p-Pb collision at $\sqrt{s_{NN}} =$ 5.02 TeV.
format Preprint
id arxiv_https___arxiv_org_abs_2410_15671
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Probing the onset of hydrodynamization in peripheral p-Pb collisions at $\sqrt{s_{NN}} =$ 5.02 TeV
Hatwar, Nikhil
Dash, Sadhana
Nandi, Basanta Kumar
High Energy Physics - Phenomenology
Nuclear Theory
An attempt has been made to estimate the minimum size of the de-confined matter of Quark-Gluon Plasma (QGP) in small systems like p-Pb system that could be satisfactorily modeled with low-order hydrodynamics. The variation of second order transport coefficient of second order relativistic viscous hydrodynamics, the shear relaxation time has been utilized to study the sensitivity of experimental observables like elliptic flow coefficient. A representative system of p-Pb collisions at $\sqrt{s_{NN}} =$ 5.02 TeV, simulated with the state-of-art framework of JETSCAPE event generator was used to study the variation of elliptic flow coefficient for peripheral collisions. The soft sector dynamics was simulated using an initial condition, a pre-equilibrium stage, hydrodynamics and a hadron afterburner. The transverse momentum spectra and rapidity distribution was obtained for light flavored hadrons and compared with the experimental data. The increase in elliptic flow fluctuations indicate breakdown of fluid behavior at $dN/dy \approx 14$ for p-Pb collision at $\sqrt{s_{NN}} =$ 5.02 TeV.
title Probing the onset of hydrodynamization in peripheral p-Pb collisions at $\sqrt{s_{NN}} =$ 5.02 TeV
topic High Energy Physics - Phenomenology
Nuclear Theory
url https://arxiv.org/abs/2410.15671