论文标题
中子星的陆地实验和天体物理观察的核饱和性能的约束
Constraints on Nuclear Saturation Properties from Terrestrial Experiments and Astrophysical Observations of Neutron Stars
论文作者
论文摘要
考虑到中子恒星和重力波信号的陆地实验以及最近的天体物理观察结果，我们对同义 - 敏化核物质的状态方程（EOS）施加了限制。使用SU（3）风味对称性的相对论平均模型模型，我们研究了有效的核子质量，核不可压缩性以及核对称能的斜率参数对核和中子星特性的影响。发现大量中子星和潮汐变形的天体物理信息以及核实验数据起着限制中子星的EOS的重要作用。尤其是，由于核心中存在超子引起的核EOS的柔软度对这些物理数量产生了严格的限制。此外，有可能通过核和天体物理计算限制核对称能的曲率参数。
Taking into account the terrestrial experiments and the recent astrophysical observations of neutron stars and gravitational-wave signals, we impose restrictions on the equation of state (EoS) for isospin-asymmetric nuclear matter. Using the relativistic mean-field model with SU(3) flavor symmetry, we investigate the impacts of effective nucleon mass, nuclear incompressibility, and slope parameter of nuclear symmetry energy on the nuclear and neutron-star properties. It is found that the astrophysical information of massive neutron stars and tidal deformabilities as well as the nuclear experimental data plays an important role to restrict the EoS for neutron stars. Especially, the softness of the nuclear EoS due to the existence of hyperons in the core gives stringent constraints on those physical quantities. Furthermore, it is possible to put limits on the curvature parameter of nuclear symmetry energy by means of the nuclear and astrophysical calculations.
