Speaker
Prof.
Chang Ho Hyun
(Deagu University)
Description
We investigate the effects of $\Lambda\Lambda$ interactions to the
bulk properties of neutron stars.
We employ a few Skyrme-type and a finite-range force models for the
description of $\Lambda \Lambda$ interactions,
where the parameters of the model are determined to reproduce the binding energies
of double-$\Lambda$ hypernuclei.
Equation of state of neutron star matter is calculated self-consistently,
and the mass-radius relation of neutron stars is obtained by solving
Tolman-Oppenheimer-Volkoff equations.
Results exhibit strong dependence on the $\Lambda \Lambda$ interaction models,
and the corresponding uncertainties are as significant as those from the
dependence on the nucleon-nucleon interaction models.
Primary author
Prof.
Chang Ho Hyun
(Deagu University)
Co-authors
Prof.
Chang-Hwan Lee
(Pusan National University)
Prof.
Kyunjin Kwak
(UNIST)
Dr
Yeunhwan Lim
(RISP/IBS)
