Femtoscopy scales and particle production in the relativistic heavy ion collisions from Au+Au at 200 AGeV to Xe+Xe at 5.44 ATeV within the integrated hydrokinetic model
Bogolyubov Institute for Theoretical Physics, 14b Metrolohichna street, Kiev, 03143, Ukraine
2 Department of Physics, Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
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Accepted: 28 September 2020
Published online: 12 October 2020
The recent results on the main soft observables, including hadron and photon yields and particle number ratios, spectra, flow harmonics, as well as the femtoscopy radii, obtained within the integrated hydrokinetic model (iHKM) for high-energy heavy-ion collisions are reviewed and re-examined. The cases of different nuclei colliding at different energies are considered: Au+Au collisions at the top RHIC energy GeV, Pb+Pb collisions at the LHC energies TeV and TeV, and the LHC Xe+Xe collisions at TeV. The effect of the initial conditions and the model parameters, including the utilized equation of state (EoS) for quark-gluon phase, on the simulation results, as well as the role of the final afterburner stage of the matter evolution are discussed. The possible solution of the so-called “photon puzzle” is considered. The attention is also paid to the dependency of the interferometry volume and individual interferometry radii on the initial transverse geometrical size of the system formed in the collision.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020