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相关论文: Collision geometry effect on free spectator nucleo…

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The neutron skin in deformed nuclei is generally not uniformly distributed but has an angular distribution, depending on both the spin-dependent nuclear interaction and the nuclear symmetry energy. To extract the information of the deformed…

核理论 · 物理学 2023-01-24 Lu-Meng Liu , Jun Xu , Guang-Xiong Peng

Besides the yield ratio of free spectator neutrons produced in ultracentral $^{96}$Zr+$^{96}$Zr to $^{96}$Ru+$^{96}$Ru collisions, we propose that the yield ratio $N_n/N_p$ of free spectator neutrons to protons in a single collision system…

核理论 · 物理学 2022-09-28 Lu-Meng Liu , Chun-Jian Zhang , Jun Xu , Jiangyong Jia , Guang-Xiong Peng

We show that the yield ratio of free spectator neutrons produced in high-energy $^{96}$Zr+$^{96}$Zr to $^{96}$Ru+$^{96}$Ru collisions is a clean probe of the neutron-skin thickness of colliding nuclei and the slope parameter $L$ of the…

核理论 · 物理学 2022-09-22 Lu-Meng Liu , Chun-Jian Zhang , Jia Zhou , Jun Xu , Jiangyong Jia , Guang-Xiong Peng

Effects of the collision geometry on experimental observables that are known to be sensitive to the high-density behavior of nuclear symmetry energy are examined in U+U collisions at 0.52 GeV/nucleon using an isospin- and momentum-dependent…

核理论 · 物理学 2012-11-02 Jun Xu , Zachary Martinot , Bao-An Li

We report on our studies of the neutron-skin effects in high-$p_{\mathrm{T}}$ observables at the LHC. We study the impact of the neutron-skin effect on the centrality dependence of inclusive direct photon, high-$p_{\mathrm{T}}$ hadron and…

高能物理 - 唯象学 · 物理学 2016-06-30 Ilkka Helenius , Hannu Paukkunen , Kari J. Eskola

In heavy nuclei the ratio between local densities of neutrons and protons increases towards the nuclear periphery. The excess of neutrons is known as the neutron skin (NS) with a subtle difference ($<0.5$~fm) between the r.m.s radii of the…

核理论 · 物理学 2022-10-19 Nikita Kozyrev , Aleksandr Svetlichnyi , Roman Nepeivoda , Igor Pshenichnov

A well-established observation in nuclear physics is that in neutron-rich spherical nuclei the distribution of neutrons extends farther than the distribution of protons. In this work, we scrutinize the influence of this so called…

高能物理 - 唯象学 · 物理学 2017-03-24 Ilkka Helenius , Hannu Paukkunen , Kari J. Eskola

The influence of the underlying nucleon-nucleon collision geometry on evaluations of the nuclear overlap function ($T_{AB}$) and number of binary collisions ($N_{coll}$) is studied. A narrowing of the spatial distribution of the…

核理论 · 物理学 2009-11-05 Jiangyong Jia

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 $\Delta r_{np}$…

核理论 · 物理学 2024-11-26 Tian-Ze Li , Lu-Meng Liu , Jun Xu , Zhong-Zhou Ren

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…

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…

核理论 · 物理学 2026-04-10 Amit Paul , Rupa Chatterjee

The effects of neutron skin on the multiplicity ($N_{\rm ch}$) and eccentricity($\epsilon_2$) in relativistic $^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV are investigated with…

核理论 · 物理学 2021-09-09 Hao-jie Xu , Hanlin Li , Xiaobao Wang , Caiwan Shen , Fuqiang Wang

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…

核理论 · 物理学 2017-04-05 Somnath De

Bulk nuclear structure properties, such as radii and deformations, leave distinct signatures in the final state of relativistic heavy-ion collisions. Isobaric collisions offer an easy route to establish explicit connections between the…

核理论 · 物理学 2023-07-26 Jiangyong Jia , Giuliano Giacalone , Chunjian Zhang

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…

核理论 · 物理学 2025-10-10 Hui Zhang , Alex Akridge , Charles J. Horowitz , Jinfeng Liao , Hongxi Xing

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…

核理论 · 物理学 2023-04-25 Junping Yang , Xiang Chen , Ying Cui , Zhuxia Li , Yingxun Zhang

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

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…

核理论 · 物理学 2020-11-25 Hanlin Li , Hao-jie Xu , Ying Zhou , Xiaobao Wang , Jie Zhao , Lie-Wen Chen , Fuqiang Wang

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 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…

核理论 · 物理学 2015-04-02 Z. T. Dai , D. Q. Fang , Y. G. Ma , X. G. Cao , G. Q. Zhang , W. Q. Shen
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