Studying Λ interactions in nuclear matter with the Λ208Pb(e,e'K+) Λ208 Tl reaction
Abstract
In view of astrophysical implications, a proposal of an experiment aiming at measuring Λ binding energies of several energy levels of the hypernucleus Λ208Tl was submitted to JLab Program Advisory Committee. Λ208Tl hypernuclei will be produced through the Λ208Pb(e,e'K+) & Lambda; 208 Tl reaction. Thanks to the extended region of constant density and the large neutron excess, 208Pb provides the best available proxy of neutron star matter. The experiment will provide essential information, needed to constrain and improve the available models of Hyperon-Nucleon and Hyperon-Nucleon-Nucleon potentials and therefore confirm whether hyperonic three-body forces could be the solution to the so-called hyperon-puzzle, the impossibility of reconciling the existence of very massive (up to two solar masses) neutron stars with the presence of hyperons in the interior of these objects.
- Publication:
-
APS Division of Nuclear Physics Meeting Abstracts
- Pub Date:
- 2020
- Bibcode:
- 2020APS..DNP.EH003U