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相关论文: Determination of neutron-skin thickness using conf…

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Neutron skin is an exotic phenomena in unstable nuclei. The various effects in nuclear reactions caused by the neutron skin and also its relation with the properties of nuclear structure are reviewed in this article. Based on numerous…

核理论 · 物理学 2024-09-12 Meng-Qi Ding , De-Qing Fang , Yu-Gang Ma

The neutron skin of nuclei is an important fundamental property, but its accurate measurement faces many challenges. Inspired by charge symmetry of nuclear forces, the neutron skin of a neutron-rich nucleus is related to the difference…

We show that the neutron skin thickness $\Delta r_{np}$ of heavy nuclei is uniquely fixed by the symmetry energy density slope $L({\rho})$ at a subsaturation cross density $\rho_c \approx 0.11$ fm$^{-3}$ rather than at saturation density…

核理论 · 物理学 2014-07-02 Zhen Zhang , Lie-Wen Chen

Proton and neutron density profiles of 760 nuclei in the mass region of A=16-304are analyzed using the Skyrme energy density for the parameter set SLy4. Simple formulae are obtained to fit the resulting radii and diffuseness data. These…

核理论 · 物理学 2015-12-09 W. M. Seif , Hesham Mansour

We present the first Bayesian inference of neutron star crust properties to incorporate neutron skin data, including the recent PREX measurement of the neutron skin of $^{208}$Pb, combined with recent chiral effective field theory…

核理论 · 物理学 2022-10-26 William G. Newton , Rebecca Preston , Lauren Balliet , Michael Ross

Within an isospin- and momentum-dependent transport model IBUU11 using as an input nucleon density profiles from Hartree-Fock calculations based on a modified Skyrme-like (MSL) model, we study the influence of the uncertainty of the neutron…

核理论 · 物理学 2015-06-17 Gao-Feng Wei , Bao-An Li , Jun Xu , Lie-Wen Chen

Based on the framework of the Isospin-Dependent Quantum Molecular Dynamics (IQMD) model in which the initial neutron and proton densities are sampled according to the droplet model, the correlation between triton-to-$^{3}$He yield ratio…

核理论 · 物理学 2014-02-14 Z. T. Dai , D. Q. Fang , Y. G. Ma , X. G. Cao , G. Q. Zhang

The dependence between neutron-to-proton yield ratio ($R_{np}$) and neutron skin thickness ($\delta_{np}$) in neutron-rich projectile induced reactions is investigated within the framework of the Isospin-Dependent Quantum Molecular Dynamics…

核理论 · 物理学 2009-12-22 X. Y. Sun , D. Q. Fang , Y. G. Ma , X. Z. Cai , J. G. Chen , W. Guo , W. D. Tian , H. W. Wang

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

The cross sections of SDR in the Sb isotopes have been measured. Within the model used, the neutron-skin thicknesses $r_{\rm skin}({\rm exp})$ deduced $0.12 \pm 0.06$fm for $^{116}$Sn, $0.13 \pm 0.06$fm for $^{118}$Sn, $0.18 \pm 0.07$fm for…

核理论 · 物理学 2023-10-26 Shingo Tagami , Tomotsugu Wakasa , Masanobu Yahiro

We present and discuss numerical predictions for the neutron density distribution of $^{208}$Pb using various non-relativistic and relativistic mean-field models for the nuclear structure. Our results are compared with the very recent pion…

核理论 · 物理学 2014-09-22 Andrea Meucci , Matteo Vorabbi , Carlotta Giusti , Paolo Finelli

We analyze the neutron skin thickness in finite nuclei with the droplet model and effective nuclear interactions. The ratio of the bulk symmetry energy J to the so-called surface stiffness coefficient Q has in the droplet model a prominent…

核理论 · 物理学 2009-09-01 M. Warda , X. Vinas , X. Roca-Maza , M. Centelles

Photon from neutron-proton bremsstrahlung in p+Pb reactions is examined as a potential probe of the neutron-skin thickness in different centralities and at different proton incident energies. It is shown that the best choice of reaction…

核理论 · 物理学 2015-07-21 Gao-Feng Wei

Accurately calibrated effective field theories are used to compute atomic parity non-conserving (APNC) observables. Although accurately calibrated, these effective field theories predict a large spread in the neutron skin of heavy nuclei.…

核理论 · 物理学 2010-12-23 Tapas Sil , M. Centelles , X. Vinas , J. Piekarewicz

A method is presented to extract the neutron-skin thickness of atomic nuclei from the second and fourth moments of the electric charge distribution. We show that the value of the proton fourth moment must be independently known in order to…

核理论 · 物理学 2021-08-11 Tomoya Naito , Gianluca Colò , Haozhao Liang , Xavier Roca-Maza

The consistency between electron-scattering and proton-scattering is examined through the fourth moment of the charge distribution.

核理论 · 物理学 2024-07-17 Toshio Suzuki , Rika Danjo , Toshimi Suda

This study explores the role of information entropy in understanding nuclear density distributions, including both stable configurations and non-traditional structures such as neutron halos and $\alpha$-clustering. By quantifying the…

核理论 · 物理学 2024-10-01 Wei-Hu Ma , Yu-Gang Ma

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

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 isobaric yield ratio difference (IBD) between two reactions of similar experimental setups is found to be sensitive to nuclear density differences between projectiles. In this article, the IBD probe is used to study the density…

核理论 · 物理学 2014-09-10 Chun-Wang Ma , Xiao-Man Bai , Jiao Yu , Hui-Ling Wei