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相关论文: Predicting the single-proton/neutron potentials in…

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The symmetric nuclear matter and pure neutron matter are investigated by the relativistic Brueckner-Hartree-Fock (RBHF) theory with the covariant chiral nuclear forces up to the next-to-leading order~(NLO). A fitting scheme to ensure the…

核理论 · 物理学 2025-06-24 Wei-Jiang Zou , Yi-Long Yang , Jun-Xu Lu , Peng-Wei Zhao , Li-Sheng Geng , Jie Meng

The relation between the slope of the nuclear symmetry energy at saturation density and the neutron skin thickness is investigated. Constraints on the slope of the symmetry energy are deduced from the neutron skin data obtained in…

核理论 · 物理学 2012-02-22 M. Warda , M. Centelles , X. Viñas , X. Roca-Maza

The density dependent relativistic hadron field (DDRH) theory is applied to strongly asymmetric nuclear matter and finite nuclei far off stability. A new set of in-medium meson-nucleon vertices is derived from Dirac-Brueckner Hartree-Fock…

核理论 · 物理学 2009-11-06 F. Hofmann , C. M. Keil , H. Lenske

The first results of a new three-dimensional, finite temperature Skyrme-Hartree-Fock+BCS study of the properties of inhomogeneous nuclear matter at densities and temperatures leading to the transition to uniform nuclear matter are…

太阳与恒星天体物理 · 物理学 2011-05-25 W. G. Newton

We calculate several neutron star properties, for static and/or rotating stars, using equations of state based on different microscopic models. These include our Dirac-Brueckner-Hartree-Fock model and others derived from the…

核理论 · 物理学 2009-06-02 F. Sammarruca , Pei Liu

The experimental and theoretical studies of Giant Resonances, or more generally of the nuclear collective vibrations, are a well established domain in which sophisticated techniques have been introduced and firm conclusions reached after an…

核理论 · 物理学 2014-02-25 G. Colò , U. Garg , H. Sagawa

We investigate the effects of charge independence and charge symmetry breaking in neutron-rich matter. We consider neutron and proton properties in isospin-asymmetric matter at normal densities as well as the high-density neutron matter…

核理论 · 物理学 2015-06-05 F. Sammarruca , L. White , B. Chen

Neutron star observations, as well as experiments on neutron-rich nuclei, used to motivate one to look at degenerate nuclear matter from its extreme, namely, pure neutron matter. As an important next step, impurities and clusters in dilute…

核理论 · 物理学 2024-03-20 Hiroyuki Tajima , Hajime Moriya , Wataru Horiuchi , Eiji Nakano , Kei Iida

The sensitivity of nuclear symmetry energy elements at the saturation density to the binding energies of ultra neutron-rich nuclei (neutron to proton ratio $\sim$ 2) and the maximum mass of neutron star is explored within a relativistic…

核理论 · 物理学 2016-06-03 C. Mondal , B. K. Agrawal , J. N. De , S. K. Samaddar

It is shown that the modern equations of state for neutron star matter based on microscopic calculations of symmetric and asymmetric nuclear matter are compatible with the lower bound on the maximum neutron-star mass for a certain range of…

天体物理学 · 物理学 2015-06-24 H. Huber , M. K. Weigel , F. Weber

We study the correlation between the thickness of the neutron skin in finite nuclei and the nuclear symmetry energy for isotopic chains of even-even Ni, Sn, and Pb nuclei in the framework of the deformed self-consistent mean-field Skyrme…

核理论 · 物理学 2015-05-30 M. K. Gaidarov , A. N. Antonov , P. Sarriguren , E. Moya de Guerra

The microscopic mechanisms of the symmetry energy in nuclear matter are investigated in the framework of the relativistic Brueckner-Hartree-Fock (RBHF) model with a high-precision realistic nuclear potential, pvCDBonn A. The kinetic energy…

核理论 · 物理学 2022-06-15 Chencan Wang , Jinniu Hu , Ying Zhang , Hong Shen

We review a variety of theoretical and experimental investigations aimed at improving our knowledge of the nuclear matter equation of state. Of particular interest are nuclear matter extreme states in terms of density and/or isospin…

核理论 · 物理学 2015-05-18 Francesca Sammarruca

Generalized symmetry energy coefficients of asymmetric nuclear matter are obtained as screening functions. The dependence of the isospin symmetry energy coefficient on the neutron proton (n-p) asymmetry may be determined unless by a…

核理论 · 物理学 2009-11-07 Fabio L. Braghin

The proton fraction in ${\sl \beta}$-stable neutron stars is investigated within the framework of the Skyrme-Hartree-Fock theory using the extended Skyrme effective interaction for the first time. The calculated results show that the proton…

核理论 · 物理学 2009-11-06 Feng-Shou Zhang , Lie-Wen Chen

Using the Hugenholtz-Van Hove theorem, we derive general expressions for the quadratic and quartic symmetry energies in terms of single-nucleon potentials in isospin asymmetric nuclear matter. These analytical relations are useful for…

核理论 · 物理学 2015-05-18 Chang Xu , Bao-An Li , Lie-Wen Chen , Che Ming Ko

We study the effects of dark matter on the properties of neutron stars by employing a DM-admixed model. The Brueckner-Hartree-Fock theory with realistic three-body forces and a generic bosonic self-interacting dark matter model describe the…

核理论 · 物理学 2024-10-23 Hong-Ming Liu , Jin-Biao Wei , Zeng-Hua Li , G. F. Burgio , H. -J. Schulze

In this work we define single-particle potentials for a positron and a positronium atom interacting with light atoms (H, He, Li and Be) by inverting a single-particle Schr\"odinger equation. For this purpose, we use accurate energies and…

原子与分子团簇 · 物理学 2014-05-21 A. Zubiaga , F. Tuomisto , M. Puska

The particle-particle hole-hole ring-diagram summation method is employed to obtain the equation of state of asymmetric nuclear matter over a wide range of asymmetry fraction. Compared with Brueckner Hartree-Fock and model-space Brueckner…

核理论 · 物理学 2007-05-23 J. Shamanna , T. T. S. Kuo , I. Bombaci , Subhankar Ray

We evaluate the {\em three-dimensional}, {\em non-axis-symmetric}, {\em time-dependent} Newton potential generated by a pair of mutually orbiting objects such as pairs of ordinary or neutron stars and, in some approximations, black holes,…

广义相对论与量子宇宙学 · 物理学 2023-05-09 Renato Spigler