mgr Michał Marczenko, IFT UWr

Modeling Cold and Dense QCD Matter

One of the most significant aspects of QCD thermodynamics is understanding how the transition from hadrons to their constituents—quarks and gluons—relates to the underlying deconfinement and chiral dynamics. This is of major relevance for heavy-ion collisions, as well as in the study of cold and dense systems, such as compact stars. In this talk, I present a description of QCD matter based on the effective hybrid quark-meson-nucleon model for QCD phase transitions at low temperatures and finite baryon densities. The structure of the net-baryon number fluctuations along with its higher order cumulants is discussed as possible probes for the phase transitions. I also discuss the implications of the chiral symmetry restoration on the mass-radius relation for compact stars obtained in accordance with the modern astrophysical constraints.