TY  - JOUR
A1  - Ghosh, Suprovo
A1  - Pradhan, Bikram Keshari
A1  - Chatterjee, Debarati
A1  - Schaffner-Bielich, Jürgen
T1  - Multi-physics constraints at different densities to probe nuclear symmetry energy in hyperonic neutron stars
T2  - Frontiers in astronomy and space sciences
N2  - The appearance of strangeness in the form of hyperons within the inner core of neutron stars is expected to affect its detectable properties, such as its global structure or gravitational wave emission. This work explores the parameter space of hyperonic stars within the framework of the Relativistic Mean Field model allowed by the present uncertainties in the state-of-the-art nuclear and hypernuclear experimental data. We impose multi-physics constraints at different density regimes to restrict the parameter space: Chiral effective field theory, heavy-ion collision data, and multi-messenger astrophysical observations of neutron stars. We investigate possible correlations between empirical nuclear and hypernuclear parameters, particularly the symmetry energy and its slope, with observable properties of neutron stars. We do not find a correlation for the hyperon parameters and the astrophysical data. However, the inclusion of hyperons generates a tension between the astrophysical and heavy-ion data constraining considerably the available parameter space.
KW  - symmetry energy
KW  - hyperons
KW  - neutron stars
KW  - equation of state
KW  - nuclear
KW  - hypernuclear
KW  - heavy-ion
KW  - multi-messenger
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/82704
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-827040
SN  - 2296-987X
N1  - This work was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through the CRC-TR 211 “Strong-Interaction Matter Under Extreme Conditions”– project number 315477589—TRR 211.
VL  - 9
IS  - art. 864294
SP  - 1
EP  - 14
PB  - Frontiers Media
CY  - Lausanne
ER  -