论文标题
BigApple力及其对有限核和天体物理对象的影响
BigApple force and its implications to finite nuclei and astrophysical objects
论文作者
论文摘要
GW190814事件的次要组成部分使我们遇到了一个问题：“它是超级质量的中子星还是最轻的黑洞？”。最近，Fattoyev等。已经获得了一个名为BigApple的能量密度函数（EDF），该功能重现了中子星的质量为2.60 $ m_ \ odot $，与GW190814数据非常一致。这项研究通过使用BigApple EDF以及四个众所周知的相对论平均力量，即NL3，G3，IOPB-I和FSUGARNET，探讨了有限核，核物质和中子星的性质。 BigApple很好地预测了有限的核特性，例如每个粒子的结合能，皮肤厚度，电荷半径，单粒子能量和两种中子分离能。计算出的核物质量，例如饱和密度的不可压缩性，对称能量和斜率参数与可用的经验或实验值一致。 BigApple参数集通过GW190814数据很好地匹配了预测的规范潮汐变形性。同样，无量纲的惯性力矩在于由PSR J0737-3039A分析给出的范围。
The secondary component of the GW190814 event left us with a question, "whether it is a supermassive neutron star or lightest black-hole?". Recently, Fattoyev et al. have obtained an energy density functional (EDF) named as BigApple, which reproduces the mass of the neutron star is 2.60 $M_\odot$ which is well consistent with GW190814 data. This study explores the properties of finite nuclei, nuclear matter, and neutron stars by using the BigApple EDF along with four well-known relativistic mean-field forces, namely NL3, G3, IOPB-I, and FSUGarnet. The finite nuclei properties like binding energy per particle, skin thickness, charge radius, single-particle energy, and two-neutron separation energy are well predicted by the BigApple for a series of nuclei. The calculated nuclear matter quantities such as incompressibility, symmetry energy, and slope parameters at saturation density are consistent with the empirical or experimental values where ever available. The predicted canonical tidal deformability by the BigApple parameter set is well-matched with the GW190814 data. Also, the dimensionless moment of inertia lies in the range given by the analysis of PSR J0737-3039A.
