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HK: Fachverband Physik der Hadronen und Kerne
HK 2: Nuclear Astrophysics I
HK 2.3: Vortrag
Montag, 11. März 2024, 17:30–17:45, HBR 14: HS 4
Neutron matter properties from Fermi liquid theory — •Faruk Alp1,2,3, 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
Fermi liquid theory is a powerful framework to describe interacting Fermi systems at low temperatures. Employing this formalism we calculate Landau parameters from chiral effective field theory interactions and determine properties of neutron matter such as the speed of sound and effective mass. Calculations are performed using many-body perturbation theory based on two- and three-body interactions. The goal is to obtain a comprehensive understanding of the systematic uncertainties of the Landau parameters and investigate possible ways to extrapolate the equation of state to higher densities.
*Funded by the ERC Grant Agreement No. 101020842.
Keywords: Fermi liquid theory; Neutron matter; Chiral effective field theory