Sprecher
Beschreibung
What are the properties and phases of many-body QCD matter as we vary the temperature and densities of the system?
Due to the Fermion sign problem, we cannot directly map out the QCD phase diagram from first principles. Instead, we require interdisciplinary constraints and phenomenological studies to reverse engineer information from A-A collisions, low-energy nuclear experiments, gravitational waves, and astrophysical observations. While the most standard methods of exploration often include a center-of-mass beam energy scan, multiplicity fluctuations of conserved charges, or thermal models, the structure of nuclei extracted from flow measurements and binding energies of hyper-nuclei also provides new insights into the nuclear landscape and build a bridge to neutron star studies. Here I will discuss recent work insights from varying the A-A in collisions such as the extraction of mesoscopic chemical potentials, charge fraction studies, neutron skins, and the role strangeness plays.