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Covariant density functional theory (CDFT) is a modern theoretical tool for the description of nuclear structure phenomena. The current investigation aims at the global assessment of the accuracy of the description of the ground state…

核理论 · 物理学 2015-06-19 S. E. Agbemava , A. V. Afanasjev , D. Ray , P. Ring

The observation of a compact object with a mass of $2.50-2.67M_{\odot}$ on August 14, 2019, by the LIGO Scientific and Virgo collaborations (LVC) has the potential to improve our understanding of the supranuclear equation of state. While…

高能天体物理现象 · 物理学 2021-02-08 Ingo Tews , Peter T. H. Pang , Tim Dietrich , Michael W. Coughlin , Sarah Antier , Mattia Bulla , Jack Heinzel , Lina Issa

We review our research work on the single-particle properties and the equation of state (EOS) of isospin asymmetric nuclear matter within the framework of the Brueckner-Hartree-Fock (BHF) approach extended by including a microscopic…

核理论 · 物理学 2013-07-12 Wei Zuo

The most popular Gogny parametrizations, namely D1S, D1N and D1M, describe accurately the ground-state properties of spherical and deformed finite nuclei all across the mass table obtained with Hartree--Fock--Bogoliubov (HFB) calculations.…

This paper compiles the model parameters and zero-temperature properties of an extensive collection of published theoretical nuclear interactions, including 255 non-relativistic (Skyrme-like) forces, 270 relativistic mean field (RMF) and…

核理论 · 物理学 2024-05-07 Boyang Sun , Saketh Bhattiprolu , James M. Lattimer

Using the very recently reported mass $2.14^{+0.10}_{-0.09}M_\odot$ of PSR J0740+6620 together with the data of finite nuclei and the constraints on the equation of state of symmetric nuclear matter at suprasaturation densities from flow…

核理论 · 物理学 2022-05-25 Ying Zhou , Lie-Wen Chen

Gravitational waves from inspiralling neutron stars carry information about matter at extreme gravity and density. The binary neutron star (BNS) event GW170817 provided, for the first time, insight into dense matter through this window.…

广义相对论与量子宇宙学 · 物理学 2024-10-21 Anjali B. Yelikar , Richard O'Shaughnessy , Daniel Wysocki , Leslie Wade

Properties and structure of neutron stars are determined by the equation of state (EOS) of neutron-rich stellar matter. While the collective flow and particle production in relativistic heavy-ion collisions have constrained tightly the EOS…

天体物理学 · 物理学 2008-04-22 Aaron Worley , Plamen G. Krastev , Bao-An Li

A complete high precision set of deuteron analyzing powers for elastic deuteron-proton ($dp$) scattering at 250 MeV/nucleon (MeV/N) has been measured. The new data are presented together with data from previous measurements at 70, 100, 135…

The density dependence of the symmetry energy around saturation density, characterized by the slope parameter L, is studied using information provided by the neutron skin thickness in finite nuclei. An estimate for L is obtained from…

核理论 · 物理学 2014-03-03 X. Viñas , M. Centelles , X. Roca-Maza , M. Warda

Applying an equation of state (EOS) with its symmetric nuclear matter (SNM) contribution and low-density symmetry energy $E_{sym}(\rho)$ constrained by heavy-ion reaction data, we calculate the dimensionless tidal deformability $\Lambda$ of…

核理论 · 物理学 2019-06-05 Plamen G. Krastev , Bao-An Li

GW190425 is the second neutron star merger event detected by the Advanced LIGO/Virgo detectors. If interpreted as a double neutron star merger, the total gravitational mass is substantially larger than that of the binary systems identified…

高能天体物理现象 · 物理学 2020-02-28 Ming-Zhe Han , Shao-Peng Tang , Yi-Ming Hu , Yin-Jie Li , Jin-Liang Jiang , Zhi-Ping Jin , Yi-Zhong Fan , Da-Ming Wei

Neutron stars (NSs) have traditionally been viewed as cold, zero-temperature entities. However, recent progress in computational methods and theoretical modelling has opened up the exploration of finite temperature effects, marking a novel…

New measurements of photofission and photoneutron reactions on $^{238}$U and $^{232}$Th in the Giant Dipole Resonance (GDR) energy region have been performed at the laser Compton-scattering $\gamma$-ray source of the NewSUBARU synchrotron…

Astrophysical observations of neutron stars have been widely used to infer the properties of the nuclear matter equation of state. Beside being a source of information on average properties of dense matter, however, the data provided by…

高能天体物理现象 · 物理学 2022-09-26 Andrea Sabatucci , Omar Benhar , Andrea Maselli , Costantino Pacilio

Although gravitational-wave signals from exceptional low-mass compact binary coalescences, like GW170817, may carry matter signatures that differentiate the source from a binary black hole system, only one out of every eight events detected…

高能天体物理现象 · 物理学 2020-12-02 Reed Essick , Philippe Landry

Neutron star merger event GW170817 sets an upper limit on the maximum mass of non-rotating neutron stars. Consequently, this event puts strong constraints on the dense matter equation of state (EoS). A comparative study of dense matter…

高能天体物理现象 · 物理学 2017-12-29 Sarmistha Banik , Debades Bandyopadhyay

Motivated by the unknown nature of the $2.50-2.67\,M_\odot$ compact object in the binary merger event GW190814, we study the maximum neutron star mass based on constraints from low-energy nuclear physics, neutron star tidal deformabilities…

核理论 · 物理学 2021-09-29 Yeunhwan Lim , Anirban Bhattacharya , Jeremy W. Holt , Debdeep Pati

The CREX and PREX-II measurements of the neutron-skin thickness of 48Ca and 208Pb challenge standard nuclear energy-density functional (EDF) descriptions of nuclei and nuclear matter. We show that the apparent tension arises from an…

核理论 · 物理学 2026-02-27 P. Papakonstantinou

Neutron stars (NSs) are excellent natural laboratories to constrain gravity on strong field regime and nuclear matter in extreme conditions. Motivated by the recent discovery of a compact object with $2.59^{+0.08}_{-0.09} M_\odot$ in the…

高能天体物理现象 · 物理学 2020-12-07 Rafael C. Nunes , Jaziel G. Coelho , José C. N. de Araujo