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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

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

Nuclear symmetry energy is a fundamental quantity currently under intense investigation in both nuclear physics and astrophysics. The {\it softness} or {\it stiffness} of symmetry energy is still under debate and the extraction of symmetry…

Nuclear Theory · Physics 2023-08-11 Shuo Yang , Ruijia Li , Chang Xu

The complex nature of the nuclear forces generates a broad range and diversity of observational phenomena. Heavy nuclei, though orders of magnitude less massive than neutron stars, are governed by the same underlying physics, which is…

Nuclear Experiment · Physics 2019-09-04 M. Thiel , C. Sfienti , J. Piekarewicz , C. J. Horowitz , M. Vanderhaeghen

We present a phenomenological theory of nuclei which incorporates clustering at the nuclear surface in a general form. The theory explains the recently extracted large symmetry energy at low densities of nuclear matter and is consistent…

Nuclear Theory · Physics 2010-06-29 Q. N. Usmani , Zaliman Sauli , Noraihan Abdullah

An abrupt change in $\alpha$ decay systematics around the N=126 neutron shell closure is discussed. It is explained as a sudden hindrance of the clustering of the nucleons that eventually form the $\alpha$ particle. This is because the…

Nuclear Theory · Physics 2014-11-20 Chong Qi , A. N. Andreyev , M. Huyse , R. J. Liotta , P. Van Duppen , R. A. Wyss

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

The roles of isospin asymmetry in nuclei and neutron stars are investigated using a range of potential and field-theoretical models of nucleonic matter. The parameters of these models are fixed by fitting the properties of homogeneous bulk…

Nuclear Theory · Physics 2008-11-26 Andrew W. Steiner , Madappa Prakash , James M. Lattimer , Paul J. Ellis

The neutron skin of atomic nuclei impacts the structure of neutron-rich nuclei, the equation of state of nucleonic matter, and the size of neutron stars. Here we predict the neutron skin of selected light- and medium-mass nuclei using…

Nuclear Theory · Physics 2023-01-23 S. J. Novario , D. Lonardoni , S. Gandolfi , G. Hagen

The neutron skin thickness of nuclei is a sensitive probe of the nuclear symmetry energy having multiple implications for nuclear and astrophysical studies. However, precision measurements of this observable are difficult. The analysis of…

Nuclear Theory · Physics 2010-05-27 M. Warda , X. Viñas , X. Roca-Maza , M. Centelles

We describe a relation between the symmetry energy coefficients c_sym(rho) of nuclear matter and a_sym(A) of finite nuclei that accommodates other correlations of nuclear properties with the low-density behavior of c_sym(rho). Here we take…

Nuclear Theory · Physics 2009-03-26 M. Centelles , X. Roca-Maza , X. Vinas , M. Warda

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

To investigate the influence of neutron-proton asymmetry on the formation of asymmetric clusters, we perform a systematic comparative study of $^{3}$H and $\alpha$ cluster preformation in the Boron isotopic chain ($^{11-14}$B). Within the…

Nuclear Theory · Physics 2026-04-29 J. L. Jin , Q. Zhao , P. J. Li , M. Kimura , D. Beaumel , B. Zhou , J. L. Tian

In this work we propose a new method to measure the evolution of the neutron skin thickness between different isotopes. We consider antiproton-nucleus interactions close to the production threshold of ${\Lambda}\overline{\Lambda}$ and…

The roles of isospin asymmetry in nuclei and neutron stars are investigated using a range of potential and field-theoretical models of nucleonic matter. The parameters of these models are fixed by fitting the properties of homogeneous bulk…

Nuclear Theory · Physics 2009-11-11 Andrew W. Steiner , Madappa Prakash , James M. Lattimer , Paul J. Ellis

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

The nucleonic localization function has been used for a decade to study the formation of alpha-particles in nuclei, by providing a measure of having nucleons of a given spin in a single place. However, differences in interpretation remain,…

Nuclear Theory · Physics 2023-01-11 E. Khan , L. Heitz , F. Mercier , J. -P. Ebran

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…

Nuclear Theory · Physics 2020-12-02 M. K. Gaidarov , I. Moumene , A. N. Antonov , D. N. Kadrev , P. Sarriguren , E. Moya de Guerra

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…

Nuclear Theory · Physics 2009-09-01 M. Warda , X. Vinas , X. Roca-Maza , M. Centelles

We investigate the degree of $\alpha$ ($^4$He nucleus) clustering in the ground-state density profiles of $^{44}$Ti and $^{52}$Ti. Two types of density distributions, shell- and cluster-model configurations, are generated fully…

Nuclear Theory · Physics 2022-11-09 W. Horiuchi , N. Itagaki
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