Vovchenko V. Evolution of many-particle system created in relativistic nuclear collisions

The thesis deals with the theoretical description of the strongly interacting many-particle system created in heavy-ion collisions, as well as the analysis and interpretation of new experimental data on momentum spectra of hadrons. Simulations of relativistic nucleus-nucleus and proton-proton collisions in the framework of ultra-relativistic quantum molecular dynamics were performed. The process of partition into spectators and participants at an early stage of nucleus-nucleus collisions is studied in some detail. The present work also employs the thermodynamic mean field approach, generalized here to multi-component systems in order to take repulsive interactions between particles into account. This mean-field approach is used for modeling hard-core hadron-hadron interactions within the hadron resonance gas model.