München 2019 – wissenschaftliches Programm
HK 17.2: Hauptvortrag
Dienstag, 19. März 2019, 11:35–12:10, Plenarsaal
Nuclear thermodynamics from chiral effective field theory — •Corbinian Wellenhofer — Institut für Kernphysik, Technische Universität Darmstadt — ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH
The thermodynamics of dense nuclear matter is of fundamental importance for heavy-ion collisions and many astrophysical phenomena, in particular core-collapse supernovae and neutron star mergers. In recent years, considerable progress has been achieved in the description of low-energy nuclear interactions based on chiral effective field theory. This presentation focuses on recent advances in the application of chiral two- and three-nucleon interactions in nuclear matter calculations at zero and finite temperature. The discussed topics include the predictions for various nuclear bulk properties, the nuclear liquid-gas phase transition, and the fourth-order term in the Fermi-momentum expansion. The role of three-nucleon interactions and their impact on the theoretical uncertainties is examined, and we discuss current developments that are aimed at testing the many-body convergence and the construction of a chiral nuclear equation of state for astrophysical applications. Supported by the DFG - Projektnummer 279384907- SFB 1245.