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Nucleon effective masses in neutron-rich matter are studied with the relativistic Brueckner-Hartree-Fock (RBHF) theory in the full Dirac space. The neutron and proton effective masses for symmetric nuclear matter are 0.80 times rest mass,…

核理论 · 物理学 2023-09-22 Sibo Wang , Hui Tong , Qiang Zhao , Chencan Wang , Peter Ring , Jie Meng

Nuclear ground state and collective excitation properties provide a means to probe the nuclear matter equation of state and establish connections between observables in finite nuclei and neutron stars. Specifically, the electric dipole…

核理论 · 物理学 2026-01-07 P. S. Koliogiannis , E. Yuksel , T. Ghosh , N. Paar

Nuclear density functional theory provides a unified description of finite nuclei and bulk nuclear matter, and is widely used to model the neutron star equation of state. However, extrapolations to supra-saturation densities require a…

The agreement of the nuclear equation of state (EoS) deduced from the GW170817 based tidal deformability with the one obtained from empirical data on microscopic nuclei is examined. It is found that suitably chosen experimental data on…

核理论 · 物理学 2019-05-29 Tuhin Malik , B. K. Agrawal , J. N. De , S. K. Samaddar , C. Providência , C. Mondal , T. K. Jha

We show that the odds of the mass-gap (secondary) object in GW190814 being a neutron star (NS) improve if one allows for a stiff high-density equation of state (EoS) or a large spin. Since its mass is $\in (2.50,2.67) M_{\odot}$,…

高能天体物理现象 · 物理学 2021-07-15 Bhaskar Biswas , Rana Nandi , Prasanta Char , Sukanta Bose , Nikolaos Stergioulas

The explicit density (rho) dependence in the coupling coefficients of the non-relativistic nuclear energy-density functional (EDF) encodes effects of three-nucleon forces and dynamical correlations. The necessity for a coupling coefficient…

核理论 · 物理学 2018-01-31 Panagiota Papakonstantinou , Tae-Sun Park , Yeunhwan Lim , Chang Ho Hyun

Background: Nuclear energy-density functional (EDF) approach has been widely used to describe nuclear-matter equations of state (EoS) and properties of finite nuclei. Recent advancements in neutron-star (NS) observations have put…

核理论 · 物理学 2023-10-24 Hana Gil , Nobuo Hinohara , Chang Ho Hyun , Kenichi Yoshida

With the equations of state provided by the newly developed density dependent relativistic Hartree-Fock (DDRHF) theory for hadronic matter, the properties of the static and $\beta$-equilibrium neutron stars without hyperons are studied for…

核理论 · 物理学 2010-11-23 Bao Yuan Sun , Wen Hui Long , Jie Meng , U. Lombardo

This is a brief overview of the connection between neutron skin thickness in finite nuclei and the equation of state of neutron-rich matter, with applications to neutron stars. Multiple experimental probes are discussed, including dipole…

核理论 · 物理学 2026-04-30 C. A. Bertulani

We confront observational data from gravitational wave event GW170817 with microscopic modeling of the cold neutron star equation of state. We develop and employ a Bayesian statistical framework that enables us to implement constraints on…

核理论 · 物理学 2018-08-15 Yeunhwan Lim , Jeremy W. Holt

The tidal measurement of gravitational waves from the binary neutron star merger event GW170817 allows us to probe nuclear physics that suffers less from astrophysical systematics compared to neutron star radius measurements with…

广义相对论与量子宇宙学 · 物理学 2021-01-19 Zack Carson , Andrew W. Steiner , Kent Yagi

The momentum and isospin dependence of the single-particle potential for the in-medium nucleon are the key quantities in the Relativistic Brueckner-Hartree-Fock (RBHF) theory. It depends on how to extract the scalar and the vector…

核理论 · 物理学 2022-10-28 Hui Tong , Chencan Wang , Sibo Wang

A compact object was observed with a mass $2.50-2.67~M_\odot$ by LIGO Scientific and Virgo collaborations (LVC) in GW190814, which provides a great challenge to the investigations into the supranuclear matter. To study this object,…

核理论 · 物理学 2020-11-25 Kaixuan Huang , Jinniu Hu , Ying Zhang , Hong Shen

Starting with a two-body effective nucleon-nucleon interaction, it is shown that the infinite nuclear matter model of atomic nuclei is more appropriate than the conventional Bethe-Weizsacker like mass formulae to extract saturation…

核理论 · 物理学 2009-10-28 R. Nayak , V. S. Uma Maheswari , L. Satpathy

The saturation of symmetric nuclear matter -- reflected in the nearly constant interior density of heavy nuclei -- is a defining property of nuclear matter. Modern relativistic energy density functionals (EDFs) calibrated exclusively to the…

核理论 · 物理学 2025-12-30 Md Jafrul Islam , Athul Kunjipurayil , J. Piekarewicz , A. Volya

{\it Background.} We investigate possible correlations between neutron star observables and properties of atomic nuclei. Particularly, we explore how the tidal deformability of a 1.4 solar mass neutron star, $M_{1.4}$, and the neutron skin…

核理论 · 物理学 2021-02-17 G. F. Burgio , I. Vidana

The information on the symmetry energy and its density dependence is deduced by comparing the available data on the electric dipole polarizability $\alpha_D$ of ${}^{68}$Ni, ${}^{120}$Sn, and ${}^{208}$Pb with the predictions of the Random…

The composition and properties of infinite nuclear matter under extreme conditions of temperature and pressure remain incompletely understood. In this work, we constrain the equation of state (EoS) of nuclear matter - constructed within the…

核理论 · 物理学 2025-11-04 Rahul Kumar , Prasanta Char , Rana Nandi

We investigate the constraints on the mass and radius of neutron stars by considering the tidal deformability in the merge of neutron star binaries. In order to extract the most reliable range of uncertainty from theory, we employ models…

核理论 · 物理学 2019-01-02 Young-Min Kim , Yeunhwan Lim , Kyujin Kwak , Chang Ho Hyun , Chang-Hwan Lee

New energy-density functionals (EDFs) inspired by effective-field theories (EFTs) have been recently proposed. The present work focuses on three of such functionals which were developed to produce satisfactory equations of state for nuclear…

核理论 · 物理学 2018-09-26 Jérémy Bonnard , Marcella Grasso , Denis Lacroix