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相关论文: Consistent Skyrme parametrizations constrained by …

200 篇论文

Within the covariant density functional theory of hypernuclear matter we build a series of equations of state for hypernuclear compact stars, by calibrating the coupling constants of the $\Xi$-hyperon to the experimental binding energy of…

高能物理 - 唯象学 · 物理学 2020-02-25 M. Fortin , A. R. Raduta , S. Avancini , C. Providência

We construct nuclear matter based on an extended parity doublet model including four light nucleons $N(939)$, $N(1440)$, $N(1535)$, and $N(1650)$. We exclude some values of the chiral invariant masses by requiring the saturation properties…

核理论 · 物理学 2019-08-21 Takahiro Yamazaki , Masayasu Harada

We use gravitational-wave observations of the binary neutron star merger GW170817 to explore the tidal deformabilities and radii of neutron stars. We perform Bayesian parameter estimation with the source location and distance informed by…

高能天体物理现象 · 物理学 2018-11-01 Soumi De , Daniel Finstad , James M. Lattimer , Duncan A. Brown , Edo Berger , Christopher M. Biwer

We perform an improvement in a van der Waals-type model by including it effects of short-range correlations (SRC). Attractive and repulsive parts of the nucleon-nucleon interaction are assumed to be density-dependent functions, more…

核理论 · 物理学 2023-07-25 E. H. Rodrigues , M. Dutra , O. Lourenço

A review is made of constraints on the nuclear symmetry energy parameters arising from nuclear binding energy measurements, theoretical chiral effective field predictions of neutron matter properties, the unitary gas conjecture, and…

核理论 · 物理学 2023-01-11 James M. Lattimer

A general review of the crystalline solutions of the generalized Skyrme model and their application to the study of cold nuclear matter at finite density and the Equation of State (EOS) of neutron stars is presented. For the relevant range…

We study high-energy (HE) neutrino production from interactions between supernova (SN) ejecta and the surrounding circumstellar material (CSM), focusing on regular Type~II and Type~IIn SNe. Using observationally inferred CSM density…

高能天体物理现象 · 物理学 2026-01-21 Yi-Long Duan , Tuohuniyazi Tuniyazi , Gang Guo

We show in the Skyrme-Hartree-Fock approach that unambiguous correlations exist between observables of finite nuclei and nuclear matter properties. Using this correlation analysis to existing data on the neutron skin thickness of Sn…

核理论 · 物理学 2017-08-23 Lie-Wen Chen , Che Ming Ko , Jun Xu , Bao-An Li

Neutrino processes are important in the modeling of supernova explosions, proto-neutron star evolution, and binary neutron star mergers. We study neutrino production and absorption in proto-neutron star and supernova matter and direct Urca…

核理论 · 物理学 2026-05-07 Mingya Duan , Michael Urban

Universal relations (i.e., insensitive to the equation of state) between macroscopic properties of neutron stars have proven useful for a variety of applications -- from providing a direct means to extract observables from data to breaking…

广义相对论与量子宇宙学 · 物理学 2022-08-30 Jayana A. Saes , Raissa F. P. Mendes

We place constraints on sterile neutrino resonant production (RP) and scalar decay production (SDP) mechanisms assuming that sterile neutrino represents a fraction from the total Cold Dark Matter energy density. For the cosmological…

宇宙学与河外天体物理 · 物理学 2019-10-23 Lucia A. Popa

It has been recently shown, that some Skyrme functionals can lead to non-converging results in the calculation of some properties of atomic nuclei. A previous study has pointed out a possible link between these convergence problems and the…

核理论 · 物理学 2015-05-20 A. Pastore , D. Tarpanov , D. Davesne , J. Navarro

In this article we study properties of isospin asymmetric nuclear matter in the generalized Skyrme model. This is achieved by canonically quantizing the isospin collective degrees of freedom of the recently found multi-wall skyrmion…

高能物理 - 理论 · 物理学 2024-03-12 Paul Leask , Miguel Huidobro , Andrzej Wereszczynski

{\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 class of scalar-tensor theories with the scalar field coupling to the Gauss-Bonnet invariant has drawn great interest since solutions of spontaneous scalarization were found for black holes in these theories. We contribute to the…

广义相对论与量子宇宙学 · 物理学 2022-01-05 Rui Xu , Yong Gao , Lijing Shao

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

Properties of neutron stars in GW170817 are investigated using different equations of state (EoS) involving nucleons, $\Lambda$ hyperons, quarks resulting in $2M_{\odot}$ neutron stars. This calculation is performed using the same EoS for…

高能天体物理现象 · 物理学 2019-01-02 Sajad A. Bhat , Debades Bandyopadhyay

The detection of the GW170817 neutron star merger event has incited an intense research activity towards the understanding of the nuclear matter equation of state. In this paper we compare in particular the pressure-density relation…

核理论 · 物理学 2019-07-09 G. F. Burgio , A. Figura , H. -J. Schulze , J. -B. Wei

In this work we parameterize the Equation of State of dense neutron star (NS) matter with four pressure parameters of $\{\hat{p}_1, \hat{p}_2, \hat{p}_3, \hat{p}_4\}$ and then set the combined constraints with the data of GW 170817 and the…

Our knowledge about neutron star (NS) masses is renewed once again due to the recognition of the heaviest NS PSR J$ 0952-0607 $. By taking advantage of both mass observations of super massive neutron stars and the tidal deformability…

高能天体物理现象 · 物理学 2023-11-17 Lan Guo , YiFei Niu