Collision Centrality Dependencies of kinetic freeze-out parameters in high-energy Xe+Xe and Pb+Pb collisions at the LHC.

The kinetic freeze-out parameters - kinetic freeze-out temperature and average transverse radial flow velocity of a dense matter, produced in high-energy Xe+Xe and Pb+Pb collisions at the Large hadron collider (LHC, CERN, Switzerland), have been extracted using phenomenological model analysis of the experimental transverse momentum distributions of identified charged particles at various collision centralities. Collision centrality and system size dependencies of kinetic freeze-out parameters of the system, produced in high-energy Xe+Xe and Pb+Pb collisions at the LHC, have been analyzed and established.