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We propose a new method to study the evolution of the neutron periphery between different isotopes by considering antiproton--nucleus interactions close to the production threshold of $\Lambda \overline{\Lambda }$ and…

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…

Nuclear Theory · Physics 2015-07-21 Gao-Feng Wei

Understanding how protons and neutrons are located differently in an atomic nucleus can provide fundamental information on nuclear structure and have far-reaching implications for astrophysics. A precise determination of this important…

Nuclear Theory · Physics 2025-10-10 Hui Zhang , Alex Akridge , Charles J. Horowitz , Jinfeng Liao , Hongxi Xing

Recent experiments on lead (\textrm{$Pb_{82}^{208}$}) nuclei have observed the celebrated phenomenon of neutron skin-thickness of low energy nuclear physics. The skin-thickness provides a measure of extension of spatial distribution of…

Nuclear Theory · Physics 2017-04-05 Somnath De

We study the impact of neutron-skin thickness on $J/\psi$ photoproduction in ultra-peripheral $^{208}\mathrm{Pb}+{}^{208}\mathrm{Pb}$ collisions. Within the Color Glass Condensate framework, we calculate coherent and incoherent cross…

Nuclear Theory · Physics 2026-04-22 Haoyuan Li , Lu-Meng Liu , Jinhui Chen , Yu-Gang Ma , Chunjian Zhang

Particle production in ultrarelativistic heavy ion collisions depends on the details of the nucleon density distributions in the colliding nuclei. We demonstrate that the charged hadron multiplicity distributions in isobaric collisions at…

Nuclear Theory · Physics 2020-11-25 Hanlin Li , Hao-jie Xu , Ying Zhou , Xiaobao Wang , Jie Zhao , Lie-Wen Chen , Fuqiang Wang

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

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…

Nuclear Theory · Physics 2025-10-28 Grégoire Pihan , Akihiko Monnai , Björn Schenke , Chun Shen

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…

Nuclear Theory · Physics 2024-09-12 Meng-Qi Ding , De-Qing Fang , Yu-Gang Ma

To improve the constraints of symmetry energy at subsaturation density, measuring and accumulating more neutron skin data for neutron rich unstable nuclei is naturally required. Aiming to probe the neutron skin of unstable nuclei by using…

Nuclear Theory · Physics 2023-04-25 Junping Yang , Xiang Chen , Ying Cui , Zhuxia Li , Yingxun Zhang

Inspired by various studies on extracting the density distributions of nuclei from their collisions at ultrarelativistic energies, in the present work we investigate the possibility of extracting the neutron-skin thickness $\Delta r_{np}$…

Nuclear Theory · Physics 2024-11-26 Tian-Ze Li , Lu-Meng Liu , Jun Xu , Zhong-Zhou Ren

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…

Nuclear Theory · Physics 2023-12-04 Giuliano Giacalone , Govert Nijs , Wilke van der Schee

Collisions of lead nuclei at relativistic energies provide valuable insight into the properties of the quark gluon plasma formed in such collisions where the initial geometry and density profile play a crucial role in governing the…

Nuclear Theory · Physics 2026-04-10 Amit Paul , Rupa Chatterjee

Neutron skin thickness ($\Delta r_{\rm np}$) of nuclei and the inferred nuclear symmetry energy are of critical importance to nuclear physics and astrophysics. It is traditionally measured by nuclear processes with significant theoretical…

Nuclear Theory · Physics 2022-01-07 Hao-jie Xu , Hanlin Li , Ying Zhou , Xiaobao Wang , Jie Zhao , Lie-Wen Chen , Fuqiang Wang

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 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

In this work, we propose a novel approach for probing the neutron skin thickness of gold (Au) by analyzing the event-by-event distribution of $\pi^{-}$ and $\pi^{+}$ yield differences. This is achieved through SMASH simulations of…

Nuclear Theory · Physics 2025-11-17 Xu-Hua Tian , Long-Gang Pang

The neutron skin thickness in neutron-rich nuclei has traditionally been measured using elastic fixed target electron-nucleus scattering since the 1970s. In this paper, we propose a novel probe of the neutron skin thickness through deep…

High Energy Physics - Phenomenology · Physics 2025-06-13 Shan-Liang Zhang , Enke Wang , Xin-Nian Wang , Hongxi Xing

[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

The relation between the slope of the nuclear symmetry energy at saturation density and the neutron skin thickness is investigated. Constraints on the slope of the symmetry energy are deduced from the neutron skin data obtained in…

Nuclear Theory · Physics 2012-02-22 M. Warda , M. Centelles , X. Viñas , X. Roca-Maza
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