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The fragment production in collisions of $^{48,50}$Ca+$^{12}$C at 50 MeV/nucleon are simulated via the Isospin-Dependent Quantum Molecular Dynamics (IQMD) model followed by the {GEMINI code}. {By changing the diffuseness parameter of…

Nuclear Theory · Physics 2015-04-02 Z. T. Dai , D. Q. Fang , Y. G. Ma , X. G. Cao , G. Q. Zhang , W. Q. Shen

[Background] We constructed the Kyushu chiral $g$-matrix and confirmed its reliability at $30 \lesssim E_{\rm in} \lesssim 100 $~MeV and $250 \lesssim E_{\rm in} \lesssim 400$~MeV for $^{12}$C scattering. Reaction cross section data of…

Nuclear Theory · Physics 2021-12-23 Masayuki Matsuzaki , Shingo Tagami , Masanobu Yahiro

We studied the charge radius, rms radius and neutron skin thickness $\Delta r_{np}$ in even-even isotopes of Si, S, Ar and Ca and isotones of N =20, 28, 50 and 82. The $\Delta r_{np}$ in doubly-magic $^{48}$Ca, $^{68}$Ni, $^{120,132}$Sn and…

Nuclear Theory · Physics 2020-07-15 Virender Thakur , Shashi K Dhiman

Foster {\it et al.} measured total neutron cross sections $\sigma_{\rm T}$ of n+$^{208}$Pb scattering at $14.137$MeV. Carlson {\it et al.} measured $\sigma_{\rm R}$ for $p$+$^{48}$Ca scattering in $23 \text{--} 48$MeV. Tanaka {\it et al.}…

Nuclear Experiment · Physics 2024-12-12 Shingo Tagami , Takayuki Myo , Masanobu Yahiro

The radii of nucleon distribution, bulk density, and neutron skin in nuclei beyond the \beta-stability line are studied within the direct variational method. We evaluate the partial equation of state of finite nuclei and demonstrate that…

Nuclear Theory · Physics 2012-03-22 V. M. Kolomietz , S. V. Lukyanov , A. I. Sanzhur

Background: Coherent {\pi}0 photoproduction on heavy nuclei has been suggested as a reliable tool to infer neutron skin thicknesses. To this aim, various experiments have been performed, especially on 208Pb. Purpose: We analyze the…

Nuclear Theory · Physics 2022-09-29 F. Colomer , P. Capel , M. Ferretti , J. Piekarewicz , C. Sfienti , M. Thiel , V. Tsaran , M. Vanderhaeghen

This is a brief overview of the connection between neutron skin thickness in finite nuclei and the equation of state of neutron-rich matter, with applications to neutron stars. Multiple experimental probes are discussed, including dipole…

Nuclear Theory · Physics 2026-04-30 C. A. Bertulani

The formation of $\alpha$-particle clusters on the surface of heavy nuclei is described in a generalized relativistic mean-field model with explicit cluster degrees of freedom. The effects on the size of the neutron skin of Sn nuclei and…

Nuclear Theory · Physics 2015-06-19 Stefan Typel

A precise determination of the neutron skin thickness of a heavy nucleus sets a basic constraint on the nuclear symmetry energy (the neutron skin thickness is the difference of the neutron and proton rms radii of the nucleus). The parity…

Nuclear Theory · Physics 2011-07-26 X. Roca-Maza , M. Centelles , X. Viñas , M. Warda

We analyze total reaction cross sections, $\sigma_R$, for exploring their sensitivity to the neutron-skin thickness of nuclei. We cover 91 nuclei of O, Ne, Mg, Si, S, Ca, and Ni isotopes. The cross sections are calculated in the Glauber…

Nuclear Theory · Physics 2015-06-18 W. Horiuchi , Y. Suzuki , T. Inakura

We studied the charge radius ($r_{c}$), neutron radius ($r_n$), and neutron skin-thickness ($\Delta r=r_n-r_p$) over a chain of isotopes from C to Zr with the stable region to the neutron drip line. Theoretical calculations are done with…

Nuclear Theory · Physics 2020-11-03 Usuf Rahaman , M. Ikram , M. Imran , Anisul Ain Usmani

We review the experimental knowledge on the dipole polarizability (DP) of nuclei and its relation to the neutron skin thickness and properties of the neutron-rich matter equation of state (EOS). The discussion focuses on recent experiments…

Nuclear Experiment · Physics 2025-07-08 P. von Neumann-Cosel , A. Tamii

Based on the relativistic impulse approximation of proton-nucleus elastic scattering theory, the nucleon density distribution and neutron skin thickness of $^{48}$Ca are estimated via the deep learning method. The neural-network-generated…

Nuclear Theory · Physics 2023-11-21 G. H. Yang , Y. Kuang , Z. X. Yang , Z. P. Li

A precise and model-independent determination of the neutron distribution radius $R_{\rm n}$ and thus the neutron skin thickness $R_{\rm skin}$ of atomic nuclei is of fundamental importance in nuclear physics, particle physics and…

Nuclear Theory · Physics 2023-06-16 Xu-Run Huang , Lie-Wen Chen

Nuclear collective motion provides valuable constraint on the size of neutron-skin thickness and the properties of nuclear matter symmetry energy. By employing relativistic nuclear energy density functional (RNEDF) and covariance analysis…

Nuclear Theory · Physics 2015-06-18 Nils Paar , Andrea Horvat

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…

Nuclear Theory · Physics 2014-09-22 Andrea Meucci , Matteo Vorabbi , Carlotta Giusti , Paolo Finelli

We examine a method to determine the neutron-skin thickness of nuclei using data on the charge-exchange anti-analog giant dipole resonance (AGDR). Calculations performed using the relativistic proton-neutron quasiparticle random-phase…

Nuclear Theory · Physics 2015-06-15 A. Krasznahorkay , N. Paar , D. Vretenar , M. N. Harakeh

An experimentally constrained equation of state of neutron-rich matter is fundamental for the physics of nuclei and the astrophysics of neutron stars, mergers, core-collapse supernova explosions and the synthesis of heavy elements. To this…

Nuclear Theory · Physics 2018-01-03 T. Aumann , C. A. Bertulani , F. Schindler , S. Typel

Both the neutron skin thickness $\Delta R_{np}$ of atomic nuclei and the low-energy neutrino-nucleon ($\nu N$) interactions are of fundamental importance in nuclear and particle physics, astrophysics as well as new physics beyond the…

High Energy Physics - Phenomenology · Physics 2019-10-16 Xu-Run Huang , Lie-Wen Chen