https://doi.org/10.1140/epja/s10050-024-01237-2
Regular Article - Theoretical Physics
Constraining equations of state for massive neutron star within relativistic mean field models
1
Department of Physics, Himachal Pradesh University, Summerhill, 171005, Shimla, India
2
Department of Physics, Government College Karsog, District Mandi, 175011, Karsog, Himachal Pradesh, India
3
School of Applied Sciences, Himachal Pradesh Technical University, 177001, Hamirpur, India
Received:
6
July
2023
Accepted:
9
January
2024
Published online:
29
January
2024
In the present work, we constrain the equations of the state of asymmetric dense matter in consideration of the heaviest observed neutron star mass M
M
for the black widow pulsar PSR J0952-0607, finite and bulk nuclear properties. We propose four interactions for the relativistic mean field model which include different combinations of non-linear, self, and cross-couplings among isoscalar–scalar 
isoscalar–vector 
isovector–vector 
and isovector–scalar meson 
meson fields up to the quartic order. These interactions harmonize with the finite nuclei and bulk nuclear matter properties. It is observed that interactions obtained with the inclusion of meson coupling with nucleons have a significant effect on the slope of symmetry energy (L), radius (R
and dimensionless tidal deformability 
corresponding to a canonical mass neutron star. The radius of 
neutron star mass is predicted to be in the range 
= 12.98–13.34 km which also satisfies the NICER observations Miller et al. (Astrophys. J. Lett. 918, L28 (2021).
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
