Bonn 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Bonn musste abgesagt werden! Lesen Sie mehr ...

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HK: Fachverband Physik der Hadronen und Kerne

HK 60: Structure and Dynamics of Nuclei XI

HK 60.6: Vortrag

Freitag, 3. April 2020, 12:45–13:00, J-HS H

Single-particle potentials of hyperons in nuclear and neutron matter: Role of 3-baryon forces — •Dominik Gerstung, Norbert Kaiser, and Wolfram Weise — Physik Department T39, TU München

The Brueckner G-matrix formalism is employed to calculate the single-particle potentials of nucleons and hyperons in isospin-symmetric nuclear matter and pure neutron matter. The underlying two-body interactions consist of NLO chiral two-baryon potentials and effective density-dependent baryon-baryon interactions derived from the leading order chiral three-baryon forces. We compute the chemical potentials of neutrons and Λ(1116)-hyperons in order to investigate the critical density for the onset of Λ-formation in neutron-star matter.

The contact and one-pion exchange components of the ΛNN 3-body force depend on two yet undetermined short-distance parameters H1 and H2, whose ranges are explored by imposing empirical constraints from Λ-hypernuclei and nuclear matter.

Work supported in part by DFG and NSFC (CRC110).

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2020 > Bonn