Hidden puzzle of the correlation femtoscopy at the top RHIC and LHC energies and its possible solution

Abstract

Two paradoxical results (puzzles) related to correlation femtoscopy of high-energy nucleus-nucleus collisions at the RHIC and the LHC accelerators are considered within the integrated hydrokinetic model (iHKM), describing all the stages of the produced system's evolution from the initial non-equilibrium partonic state formation to the final expansion of interacting hadron-resonance gas. Possible solutions of the analyzed puzzles are proposed.