论文标题
核物质的压缩模量与儿童密度功能的对称能量
Compression modulus and symmetry energy of nuclear matter with KIDS density functional
论文作者
论文摘要
在儿童密度功能理论中探索了密集核物质状态的方程。状态方程的参数是能量密度的系数，以$（ρ-ρ_0）/3ρ_0$扩展，其中$ρ$是核物质密度，而$ρ_0$是其在饱和度时的密度约束，它使用核数据和使用现代天文学的中性恒星的核数据和弥撒关系来限制。我们发现，两种数据的组合都可以显着降低状态参数方程的不确定性。我们确认新约束的参数以高精度重现球形魔术核的基本特性。另一方面，中子滴注线对核对称能的不确定性表现出不可忽略的依赖性。
Equation of state of dense nuclear matter is explored in the KIDS density functional theory. Parameters of the equation of state which are coefficients of the energy density expanded in powers of $(ρ- ρ_0)/3ρ_0$ where $ρ$ is the nuclear matter density and $ρ_0$ is its density at saturation are constrained by using both nuclear data and the mass-radius relation of the neutron star determined from the modern astronomy. We find that the combination of both data can reduce the uncertainty in the equation of state parameters significantly. We confirm that the newly constrained parameters reproduce the basic properties of spherical magic nuclei with high accuracy. Neutron drip lines, on the other hand, show non-negligible dependence on the uncertainty of the nuclear symmetry energy.
