Study of the azimuthal asymmetry in heavy ion collisions combining initial state momentum orientation and final state collective effects

Jul 31, 2023
11 pages
Published in:
  • Phys.Rev.D 108 (2023) 7, 074013
  • Published: Oct 1, 2023
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Abstract: (APS)
In the present work we investigate the source of azimuthal asymmetry for nuclear collision using a model that contemplates particles produced in the initial hard collisions and the collective effects described by a Blast-Wave like expansion. The latter is described by the relaxation time approximation of the Boltzmann transport equation. The parameters regarding collective flow and asymmetry are fitted by the experimental data from pTp_T spectrum and v2v_2 for PbPb and XeXe collisions at different centrality classes. As a by-product the ratio of final elliptic flow with the initial anisotropy, v2/ϵ2v_2/\epsilon_2, and the average transverse momentum are predicted.
Note:
  • Version to be published in Physical Review D
  • angular distribution: asymmetry
  • particle flow: collective phenomena
  • heavy ion: scattering
  • elliptic flow
  • initial state
  • anisotropy
  • transverse momentum
  • Boltzmann equation
  • blast wave