Abstract
The theoretical description of the femtoscopy scales in ultrarelativistic heavy-ion collisions at different energies and for different colliding ion pairs (Au + Au collisions at the top RHIC energy \(\sqrt {{{s}_{{NN}}}} = 200\) GeV, Pb + Pb collisions at the LHC energies \(\sqrt {{{s}_{{NN}}}} = 2.76\) and \(\sqrt {{{s}_{{NN}}}} = 5.02\) TeV, the LHC Xe + Xe collisions at \(\sqrt {{{s}_{{NN}}}} = 5.44\) TeV) is provided within the integrated HydroKinetic model (iHKM). The comparison of the model simulation results, obtained for the considered collision types at the similar values of the mean charged particle multiplicity \(\left\langle {d{{N}_{{{\text{ch}}}}}{\text{/}}d\eta } \right\rangle \) shows that the magnitudes of the corresponding interferometry radii depend not only on \(\left\langle {d{{N}_{{{\text{ch}}}}}{\text{/}}d\eta } \right\rangle \), but also on the geometric sizes of the colliding nuclei.
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The research was carried out within the scope of the International Research Network “EUREA: European Ultra Relativistic Energies Agreement” and the corresponding Agreement with the National Academy of Sciences (NAS) of Ukraine. The work is partially supported by Tomsk State University Competitiveness Improvement Program.
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Sinyukov, Y.M., Adzhymambetov, M.D., Shapoval, V.M. et al. Femtoscopic Structure of Relativistic Heavy Ion Collisions in the Integrated HydroKinetic Model. Phys. Part. Nuclei 51, 258–262 (2020). https://doi.org/10.1134/S1063779620030260
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DOI: https://doi.org/10.1134/S1063779620030260