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A phenomenological momentum-independent (MID) model is constructed to describe the equation of state (EOS) for isospin asymmetric nuclear matter, especially the density dependence of the nuclear symmetry energy…

核理论 · 物理学 2009-10-02 Lie-Wen Chen

The Equation of State (EOS) for asymmetric nuclear matter is discussed starting from a phenomenological hadronic field theory of Serot-Walecka type including exchange terms. In a model with self interactions of the scalar sigma-meson we…

核理论 · 物理学 2009-11-06 V. Greco , M. Colonna , M. Di Toro , G. Fabbri , F. Matera

We construct a set of equations of state (EoS) of dense and hot matter with a 1st order phase transition from a hadronic system to a deconfined quark matter state. In this two-phase approach, hadrons are described using the relativistic…

高能天体物理现象 · 物理学 2019-08-27 Mateusz Cierniak , Tobias Fischer , Niels-Uwe Bastian , Thomas Klaehn , Marc Salinas

Based on systematic analyses of several popular non-relativistic energy density functionals with mean-field approximation, we estimate the value of the fourth-order symmetry energy $E_{\text{sym,4}}(\rho)$ at nuclear normal density $\rho_0$…

核理论 · 物理学 2017-11-22 Jie Pu , Zhen Zhang , Lie-Wen Chen

Within the nonlinear relativistic mean field model, we derive the analytical expression of the nuclear matter fourth-order symmetry energy $E_{sym,4}(\rho)$. Based on two accurately calibrated interactions FSUGold and IU-FSU, our results…

核理论 · 物理学 2012-03-27 Bao-Jun Cai , Lie-Wen Chen

Nuclear matrix elements (NMEs) for neutrinoless double-beta ($0\nu\beta\beta$) decay in candidate nuclei play a crucial role in interpreting results from current experiments and in designing future ones. Accurate NME values serve as…

核理论 · 物理学 2024-08-08 C. R. Ding , Gang Li , J. M. Yao

The equation of state of neutron-rich nuclear matter is of interest to both nuclear physics and astrophysics. We have demonstrated the consistency between laboratory and astrophysical nuclear matter in neutron stars by considering…

核理论 · 物理学 2023-10-06 Zhenyu Zhu , Ang Li , Jinniu Hu , Hong Shen

Our model calculations performed in the frame of the Relativistic Mean Field (RMF) approach show how important are the modifications of nucleon Structure Function (SF) in Nuclear Matter (NM) above the saturation point. They originated from…

核理论 · 物理学 2012-05-04 J. Rożynek

In this paper we have studied a new form of Non-Commutative (NC) phase space with an operatorial form of noncommutativity. A point particle in this space feels the effect of an interaction with an "{\it{internal}}" magnetic field, that is…

高能物理 - 理论 · 物理学 2009-11-11 Subir Ghosh

The electromagnetic(EM) interactions between charged protons on the correlations of nucleons are discussed by introducing the Anderson-Higgs mechanism of broken U(1) EM symmetry into the relativistic nuclear theory with a parametric photon…

核理论 · 物理学 2016-09-08 Ji-sheng Chen , Jia-rong Li , Meng Jin

Nuclear systems under constraints, with high degrees of symmetries and/or collectivities may be considered as moving effectively in spaces with reduced spatial dimensions. We first derive analytical expressions for the nucleon specific…

核理论 · 物理学 2022-08-15 Bao-Jun Cai , Bao-An Li

The quark-meson coupling (QMC) model for nuclear matter, which describes nuclear matter as non-overlapping MIT bags bound by the self-consistent exchange of scalar and vector mesons is modified by the introduction of a density dependent bag…

核理论 · 物理学 2009-10-28 Xuemin Jin , B. K. Jennings

Analysis of the covariant theta-exact noncommutative (NC) gauge field theory (GFT), inspired by high energy cosmic rays experiments, is performed in the framework of the inelastic neutrino-nucleon scatterings. Next we have have found…

高能物理 - 唯象学 · 物理学 2013-02-05 Josip Trampetic

The critical properties for the transition to warm, asymmetric, non-homogeneous nuclear matter are analysed within a thermodynamical spinodal approach for a set of well calibrated equations of state. It is shown that even though different…

核理论 · 物理学 2021-05-19 Olfa Boukari , Helena Pais , Sofija Antić , Constança Providência

The properties of high-density nuclear and neutron matter are studied using a relativistic mean-field approximation to the nuclear matter energy functional. Based on ideas of effective field theory, nonlinear interactions between the fields…

核理论 · 物理学 2009-10-30 Horst Mueller , Brian D. Serot

The properties of nuclear matter and the structures of neutron stars are analyzed with a baryonic extended linear sigma model in mean-field approximation, where the masses of baryons and mesons are generated via the spontaneous chiral…

核理论 · 物理学 2026-04-20 Yao Ma

In a compressed Nuclear Matter (NM) an increasing pressure between the nucleons starts to increase the ratio of a nucleon Fermi to average single particle energy and in accordance with the Hugenholtz-van Hove theorem the longitudinal…

核理论 · 物理学 2014-05-06 J. Rozynek

We calculate the nucleon parameters in symmetric nuclear matter employing the QCD sum rules approach. We focus on the average energy per nucleon and study the equilibrium states of the matter. We treat the matter as a relativistic system of…

核理论 · 物理学 2019-03-27 E. G. Drukarev , M. G. Ryskin , V. A. Sadovnikova

The traditional approach to nuclear physics encodes phase shift information in a nucleon-nucleon (NN) potential, producing a nucleon-level interaction that captures the sub-GeV consequences of QCD. A further reduction to the nuclear scale…

核理论 · 物理学 2019-09-04 K. S. McElvain , W. C. Haxton

We explore the equation of state for nuclear matter in the quark-meson coupling model, including full Fock terms. The comparison with phenomenological constraints can be used to restrict the few additional parameters appearing in the Fock…

核理论 · 物理学 2015-11-30 D. L. Whittenbury , J. D. Carroll , A. W. Thomas , K. Tsushima , J. R. Stone