首页|Bayesian inference of neutron-skin thickness and neutron-star observables based on effective nuclear interactions

Bayesian inference of neutron-skin thickness and neutron-star observables based on effective nuclear interactions

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We have obtained the constraints on the density dependence of the symmetry energy from neutron-skin thickness data by parity-violating electron scatterings and neutron-star observables using a Bayesian approach,based on the standard Skyrme-Hartree-Fock(SHF)model and its extension as well as the relativistic mean-field(RMF)model.While the neutron-skin thickness data(neutron-star observables)mostly constrain the symmetry energy at subsaturation(suprasaturation)densities,they may more or less constrain the behavior of the symmetry energy at suprasaturation(subsaturation)densities,depending on the energy-density functional form.Besides showing the final posterior density dependence of the symmetry energy,we also compare the slope parameters of the symmetry energy at 0.10 fm-3 as well as the values of the symmetry energy at twice saturation density from three effective nuclear interactions.The present work serves as a comparison study based on relativistic and non-relativistic energy-density functionals,for constraining the nuclear symmetry energy from low to high densities using a Bayesian approach.

symmetry energyneutron skinneutron star

Jia Zhou、Jun Xu

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Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China

University of Chinese Academy of Sciences,Beijing 100049,China

School of Physics Science and Engineering,Tongji University,Shanghai 200092,China

Strategic Priority Research Program of the Chinese Academy of SciencesNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities

XDB34030000123751251192251411475243

2024

10.1007/s11433-024-2406-4

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
年,卷(期)：2024.67(8)