Köln 2025 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 6: Nuclear Astrophysics I
HK 6.2: Vortrag
Montag, 10. März 2025, 15:30–15:45, SR 0.03 Erw. Physik
Impact of hyperons on the equation of state of dense matter — •Samet Dokur1, Kai Hebeler1,2,3, and Achim Schwenk1,2,3 — 1Department of Physics, Technische Universität Darmstadt — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH — 3Max-Planck-Institut für Kernphysik, Heidelberg
We study the effects of hyperons on properties of dense matter using many-body perturbation theory and interactions derived within chiral effective field theory. Our goal is to systematically incorporate hyperon-nucleon and hyperon-nucleon- nucleon interactions up to next-to-leading order in our existing many-body framework, which in its current state allows to compute the equation of state of dense matter based on nucleon- nucleon and three-nucleon interactions up to N3LO. In this talk, I will present the many-body framework, discuss the challenges involved in treating hyperonic interactions in many-body calculations, and present first results for the equation of state of neutron-rich matter, including calculations of the chemical potentials of the different particle species.
Keywords: Chiral effective field theory; Hyperon-nucleon interactions; Equation of state