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相关论文: Neutron-proton effective mass splitting and therma…

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The neutron-proton effective mass splitting in neutron-rich nucleonic matter reflects the space-time nonlocality of the isovector nuclear interaction. It affects the neutron/proton ratio during the earlier evolution of the Universe, cooling…

核理论 · 物理学 2015-04-14 Bao-An Li , Lie-Wen Chen

Thermal properties of asymmetric nuclear matter, including the temperature dependence of the symmetry energy, single-particle properties, and differential isospin fractionation, are investigated with different neutron-proton effective mass…

核理论 · 物理学 2015-01-23 Jun Xu , Lie-Wen Chen , Bao-An Li

The effect of temperature and density dependence of the asymmetric nuclear matter properties is studied within the extended relativistic mean field (ERMF) model, which includes the contribution from the self and mixed interaction terms by…

核理论 · 物理学 2011-10-14 Mahajan Gulshan , Shashi K. Dhiman

Thermal evolution of neutron stars is studied in the $f(R)=R+\alpha R^{2}$ theory of gravity. We first describe the equations of stellar structure and evolution for a spherically symmetric spacetime plus a perfect fluid at rest. We then…

广义相对论与量子宇宙学 · 物理学 2023-06-08 Martín Nava-Callejas , Dany Page , Mikhail V. Beznogov

We present the temperature and density dependence of symmetry energy for nuclear matter at finite temperature based on the approach of the thermodynamics with Skyrme energy density functional. We first classify the Skyrme interactions into…

核理论 · 物理学 2015-05-20 Li Ou , Zhuxia Li , Yingxun Zhang , Min Liu

The finite temperature and finite density dependence of the neutron-proton mass difference is analysed in a purely hadronic framework where the $\rho-\omega $ mixing is crucial for this isospin symmetry breakdown. The problem is handled…

高能物理 - 唯象学 · 物理学 2016-08-15 H. R. Christiansen , L. N. Epele , H. Fanchiotti , C. A. García Canal

The knowledge of the nuclear symmetry energy of hot neutron-rich matter is important for understanding the dynamical evolution of massive stars and the supernova explosion mechanisms. In particular, the electron capture rate on nuclei…

核理论 · 物理学 2008-11-26 Ch. C. Moustakidis

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

The thermal properties of asymmetric nuclear matter are investigated in a relativistic mean- field approach. We start from free space NN-interactions and derive in-medium self-energies by Dirac-Brueckner theory. By the DDRH procedure we…

核理论 · 物理学 2015-03-11 Andreas Fedoseew , Horst Lenske

We study the equation of state of neutron matter at finite temperature based on two- and three-nucleon interactions derived within chiral effective field theory to next-to-next-to-next-to-leading order. The free energy, pressure, entropy,…

核理论 · 物理学 2021-05-18 J. Keller , C. Wellenhofer , K. Hebeler , A. Schwenk

This work aim to study the various thermal characteristics of nuclei in view of the saturation and critical behavior of infinite nuclear matter. The free energy of a nucleus is parametrized using the density and temperature-dependent…

核理论 · 物理学 2023-03-15 Vishal Parmar , Manoj K Sharma , S K Patra

We present a methodical study of the thermal and nuclear properties for the hot nuclear matter using relativistic-mean field theory. We examine the effects of temperature on the binding energy, pressure, thermal index, symmetry energy, and…

高能物理 - 唯象学 · 物理学 2021-09-17 Ankit Kumar , H. C. Das , M. Bhuyan , S. K. Patra

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

In this study, my main goal is to examine the nuclear matter properties across a wide range of conditions, such as temperature, density, asymmetry, pressure, and magnetic field. Understanding the effect of these factors on nuclear matter is…

核理论 · 物理学 2023-09-21 Vishal Parmar

It is shown that the experimentally observed decrease of the nuclear symmetry energy with the increasing centrality or the excitation energy in isotopic scaling analyses of heavy-ion reactions can be well understood analytically within a…

核理论 · 物理学 2009-11-11 Bao-An Li , Lie-Wen Chen

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

We explore the thermal properties of hot and dense matter using a model that reproduces the empirical properties of isospin symmetric and asymmetric bulk nuclear matter, optical model fits to nucleon-nucleus scattering data, heavy-ion flow…

太阳与恒星天体物理 · 物理学 2015-08-26 Constantinos Constantinou , Brian Muccioli , Madappa Prakash , James M. Lattimer

With the effective chiral model, the finite temperature properties of nuclear matter have been studied at different temperatures. For symmetric nuclear matter, I particularly focused on the possibility of liquid-gas phase transition at low…

核理论 · 物理学 2020-12-22 Debashree Sen

The strong magnetic field of neutron stars is intimately coupled to the observed temperature and spectral properties, as well as to the observed timing properties (distribution of spin periods and period derivatives). Thus, a proper…

高能天体物理现象 · 物理学 2019-12-23 José A. Pons , Daniele Viganò

Significance of the chiral symmetry restoration is studied by considering the role of the modification of the nucleon mass in nuclear medium at finite density and temperature. Using the Korea-IBS-Daegu-SKKU density functional theory, we can…

核理论 · 物理学 2025-03-19 Hajime Togashi , Debashree Sen , Hana Gil , Chang Ho Hyun
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