https://doi.org/10.1140/epja/i2019-12921-1
Regular Article - Theoretical Physics
Anisotropic flow of charged and identified hadrons at FAIR energies and its dependence on the nuclear equation of state
1
Discipline of Physics, School of Basic Sciences, Indian Institute of Technology Indore, 453552, Indore, India
2
Variable Energy Cyclotron Centre, HBNI, 1/AF Bidhan Nagar, 700 064, Kolkata, India
* e-mail: sudhirrode11@gmail.com
Received:
24
June
2019
Accepted:
16
October
2019
Published online:
19
November
2019
In this article, we examine the equation of state (EoS) dependence of the anisotropic flow parameters (
, 
and 
) of charged and identified hadrons, as a function of transverse momentum (
), rapidity (
) and the incident beam energy (
) in mid-central Au + Au collisions in the energy range 
GeV. Simulations are carried out by employing different variants of the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model, namely the pure transport (cascade) mode and the hybrid mode. In the hybrid mode, transport calculations are coupled with the ideal hydrodynamical evolution. Within the hydrodynamic scenario, two different equations of state (EoS) viz. Hadron gas and Chiral + deconfinement EoS have been employed separately to possibly mimic the hadronic and partonic scenarios, respectively. It is observed that the flow parameters are sensitive to the onset of hydrodynamic expansion of the fireball in comparison to the pure transport approach. The results would be useful as predictions for the upcoming low energy experiments at Facility for Antiproton and Ion Research (FAIR) and Nuclotron-based Ion Collider fAcility (NICA).
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019
