论文标题

在整个狄拉克空间中,相对论依次理论中的不对称核物质和中子星特性

Asymmetric Nuclear Matter and Neutron Star Properties in Relativistic ab initio Theory in the Full Dirac Space

论文作者

Wang, Sibo, Tong, Hui, Zhao, Qiang, Wang, Chencan, Ring, Peter, Meng, Jie

论文摘要

通过在完整的DIRAC空间中求解相对论的Brueckner-Hartree-fock方程,可以阐明有关有效dirac质量在不对称核物质中的同胞依赖性的长期争议。饱和密度的对称能量及其斜率参数为$ e _ {\ text {sym}}(ρ_0)= 33.1 $ MEV和$ L = 65.2 $ MEV,与经验和实验值一致。进一步的应用程序预测中子星半径$ r_ {1.4m_ \ odot} \大约12 $ km和中子星的最大质量$ m _ {\ text {max}} \ leq 2.4m_ \ odot $。

The long-standing controversy about the isospin dependence of the effective Dirac mass in ab initio calculations of asymmetric nuclear matter is clarified by solving the relativistic Brueckner-Hartree-Fock equations in the full Dirac space. The symmetry energy and its slope parameter at the saturation density are $E_{\text{sym}}(ρ_0)=33.1$ MeV and $L=65.2$ MeV, in agreement with empirical and experimental values. Further applications predict the neutron star radius $R_{1.4M_\odot}\approx 12$ km and the maximum mass of a neutron star $M_{\text{max}}\leq 2.4M_\odot$.

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