Constraint of symmetry energy slope using neutron skins of $^{48}$Ca, $^{64}$Ni, $^{124}$Sn, and $^{208}$Pb and its impact on neutron star radius
Abstract We constrain the symmetry energy slope $L$ at the saturation density using the neutron skin values of $^{48}$Ca, $^{64}$Ni, $^{124}$Sn, and $^{208}$Pb determined by various experiments.
The resulting $L$ of 50(6) MeV is consistent with the world-averaged value from different observables and methodologies.
Furthermore, the implications of newly constrained $L$ on the radius determinations of 1.4 solar-mass neutron stars are also discussed based on the established $R_{1.4}$-$L$ linear relationships by the DD-ME2 and TW99 EoS families.
Authors
- X. L. Tu (ORCID: https://orcid.org/0000-0003-2162-5109)
- K. X. Huang
- Jifeng Han (ORCID: https://orcid.org/0000-0002-6926-638X)
- Yu Huang (ORCID: https://orcid.org/0000-0003-3699-4708)
- Jinniu Hu (ORCID: https://orcid.org/0000-0002-1709-0159)
- Z. Yang (ORCID: https://orcid.org/0000-0003-4104-1709)
- J. T. Zhang (ORCID: https://orcid.org/0000-0002-6170-1391)
Institutions
- Chinese Academy of Sciences (CN)
- Nankai University (CN)
- Sichuan University (CN)
- Institute of Modern Physics (CN)
- RIKEN Nishina Center (JP)
Publication Details
- Journal
- Chinese Physics C
- Published
- 2025-05-18
- DOI
- https://doi.org/10.1088/1674-1137/add9fd
- Primary Topic
- Pulsars and Gravitational Waves Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China