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相关论文: Extracting Skyrme energy density functional parame…

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Recently, within the space of generalized Skyrme models, a BPS submodel was identified which reproduces some bulk properties of nuclear matter already on a classical level and, as such, constitutes a promising field theory candidate for the…

高能物理 - 理论 · 物理学 2013-11-20 C. Adam , C. Naya , J. Sanchez-Guillen , A. Wereszczynski

We present an ensemble of unified neutron star crust and core equations of state, constructed using an extended Skyrme energy density functional through the crust and outer core, and appended by two piecewise polytropes at higher densities.…

The PREX group reported a new skin value, $r_{\rm skin}^{208}({\rm PREX2}) = 0.283 \pm 0.071{\rm fm}$. Using the chiral (Kyushu) $g$-matrix folding model with the proton and neutron densities determined with D1S+GHFB+AMP, we determined…

核实验 · 物理学 2025-07-01 Shingo Tagami , Tomotsugu Wakasa , Masanobu Yahiro

The neutron skin thickness of 48Ca was deduced from the interaction cross section by adopting a microscopic optical potential. The optical potential used was constructed by folding a chiral g matrix and the Skyrme mean-field densities…

核理论 · 物理学 2022-09-07 Masayuki Matsuzaki , Masanobu Yahiro

The neutron-proton effective mass splitting ($\Delta m^*_{np}$) is investigated through analyses of heavy-ion collisions using the improved quantum molecular dynamics (ImQMD) model with both standard and extended Skyrme interactions. By…

核理论 · 物理学 2025-06-24 Junping Yang , Meiqi Sun , Ying Cui , Yangyang Liu , Zhuxia Li , Kai Zhao , Yingxun Zhang

Emergent bulk properties of matter governed by the strong nuclear force give rise to physical phenomena across vastly different scales, ranging from the shape of atomic nuclei to the masses and radii of neutron stars. They can be accessed…

核理论 · 物理学 2023-12-04 Giuliano Giacalone , Govert Nijs , Wilke van der Schee

Based on the phenomenological Skyrme interaction various density-dependent nuclear matter quantities are calculated up to second order in many-body perturbation theory. The spin-orbit term as well as two tensor terms contribute at second…

核理论 · 物理学 2015-09-02 N. Kaiser

The heavy-ion fusion reactions induced by neutron-rich nuclei are investigated with the improved quantum molecular dynamics (ImQMD) model. With a subtle consideration of the neutron skin thickness of nuclei and the symmetry potential, the…

核理论 · 物理学 2015-06-19 Ning Wang , Li Ou , Yingxun Zhang , Zhuxia Li

Motivated by a recent experiment, the distribution of electric dipole strength in the neutron-rich 68Ni isotope was computed using a relativistic random phase approximation with a set of effective interactions that - although well…

核理论 · 物理学 2011-04-04 J. Piekarewicz

Configurational information entropy (CIE) theory was employed to determine the neutron skin thickness of neutron-rich calcium isotopes. The nuclear density distributions and fragment cross-sections in 350 MeV/u $^{40-60}$Ca + $^{9}$Be…

核理论 · 物理学 2022-01-19 Chunwang Ma , Yipu Liu , Huiling Wei , Jie Pu , Kaixuan Cheng , Yuting Wang

A Skyrme-like effective interaction is built up from the equation of state of nuclear matter. The latter is calculated in the framework of the Brueckner-Hartree-Fock approximation with two and three body forces. A complete Skyrme…

核理论 · 物理学 2009-11-11 L. G. Cao , U. Lombardo , C. W. Shen , Nguyen Van Giai

The symmetry energy and its density dependence are pivotal for many nuclear physics and astrophysics applications, as they determine properties ranging from the neutron-skin thickness of nuclei to the crust thickness and the radius of…

核理论 · 物理学 2021-12-16 Reed Essick , Philippe Landry , Achim Schwenk , Ingo Tews

Within an isospin- and momentum-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model, we investigate the hard photons emission from neutron-proton bremsstrahlung in reaction system of $^{208}Pb+^{208}Pb$ around Fermi energy. Effects…

核理论 · 物理学 2023-07-13 Wen-Mei Guo , Bao-An Li , Gao-Chan Yong

In the present work, we use a finite range effective interaction to calculate the neutron skin thickness in $^{48}$Ca and correlate these quantities with the parameters of nuclear symmetry energy. Available experimental data on the neutron…

核理论 · 物理学 2020-09-02 S. K. Tripathy , D. Behera , T. R. Routray , B. Behera

The electric dipole polarizability $\alpha_D$ and the neutron skin thickness $\Delta R_{np}$ of $^{208}\mathrm{Pb}$ are two powerful and clean probes to constrain the symmetry energy at subsaturation density. Within the framework of the…

核理论 · 物理学 2026-02-24 Dandan Niu , Xinyu Wang , Ying Cui , Qiang Zhao , Kai Zhao , Akira Ono , Yingxun Zhang

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

We propose a novel method for measuring the neutron skin of heavy nuclei using collider experiments. Specifically, we demonstrate that the neutron skin thickness of the lead nucleus can be extracted in $p$+$^{208}$Pb collisions by analyzing…

核理论 · 物理学 2025-10-28 Grégoire Pihan , Akihiko Monnai , Björn Schenke , Chun Shen

The effect of correlations between the slope and the curvature of the symmetry energy on ground state nuclear observables is studied within the extended Thomas-Fermi approximation. We consider different isovector probes of the symmetry…

核理论 · 物理学 2018-06-20 Ad. R. Raduta , F. Gulminelli

We study the effect of the splitting of neutron and proton effective masses with isospin asymmetry on the properties of the Skyrme energy density functional. We discuss the ability of the latter to predict observable of infinite matter and…

核理论 · 物理学 2009-11-11 T. Lesinski , K. Bennaceur , T. Duguet , J. Meyer

The temperature dependence of the symmetry energy for isotopic chains of even-even Ni, Sn, and Pb nuclei is investigated in the framework of the local density approximation (LDA). The Skyrme energy density functional with two Skyrme-class…

核理论 · 物理学 2017-02-22 A. N. Antonov , D. N. Kadrev , M. K. Gaidarov , P. Sarriguren , E. Moya de Guerra