Bartosz Kozłowski
supervisor: Katarzyna Grebieszkow
The NA61/SHINE is an experiment studying hadron production in proton-proton, nucleus-proton and nucleus-nucleus collision at the Super Proton Synchrotron (SPS) at the European Organization for Nuclear Research (CERN). The physic program is focused on study of the properties of the onset of deconfinement and searching critical point of the strongly interacting matter. A two-dimensional scan of the strongly interacting matter is done by changing energy of colliding ions and system size.
Analysis of the production of short-lived particles called resonances help in studying the dynamics of heavy-ion collisions. In particular, it was predicted that in dense nuclear matter their properties (e.g., widths, masses) can be modified as a result of the partial chiral symmetry restoration. The analysis of the production of K*(892)0 meson can also help in estimating the time between chemical (end of inelastic interactions in the system) and thermal (end of elastic interactions) freeze-outs.
Using data collected by the NA61/SHINE experiment and template method used in analysis of K*(892)0 resonance production in proton-proton interaction at 158 GeV/c beam momentum, analysis of the production of K*(892)0 meson in Ar+Sc inelastic collision at SPS energies will be performed. The aim of the analysis is to determine widths and masses, calculate mean multiplicity of K*(892)0 resonances and estimate time interval between chemical and kinetic freeze-outs in nucleus-nucleus collisions.