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The correlation between neutron skin-thickness of a neutron-rich nucleus and slope parameter of symmetry energy is assessed as a function of density using relativistic mean field models containing non-linear couplings among different…

Nuclear Theory · Physics 2022-04-06 Chiranjib Mondal

We calculate the skin thickness, binding energy, surface energy and density profiles within the Dirac solution of a density dependent hadronic model and compare with the NL3 parametrization results of the non-linear Wallecka model. The…

Nuclear Theory · Physics 2008-11-26 S. S. Avancini , J. R. Marinelli , D. P. Menezes , M. M. W. Moraes , A. S. Schneider

The model dependence in the correlations of the neutron-skin thickness in heavy nuclei with various symmetry energy parameters is analyzed by using several families of systematically varied microscopic mean field models. Such correlations…

Nuclear Theory · Physics 2016-06-22 C. Mondal , B. K. Agrawal , M. Centelles , G. Colò , X. Roca-Maza , N. Paar , X. Viñas , S. K. Singh , S. K. Patra

The density dependence of the symmetry energy around saturation density, characterized by the slope parameter L, is studied using information provided by the neutron skin thickness in finite nuclei. An estimate for L is obtained from…

Nuclear Theory · Physics 2014-03-03 X. Viñas , M. Centelles , X. Roca-Maza , M. Warda

The density dependence of nuclear symmetry energy remains poorly constrained. Starting from precise empirical values of the nuclear volume and surface symmetry energy coefficients and the nuclear saturation density, we show how in the ambit…

Nuclear Theory · Physics 2015-06-12 B. K. Agrawal , J. N. De , S. K. Samaddar

We have obtained the constraints on the density dependence of the symmetry energy from neutron-skin thickness data by parity-violating electron scatterings and neutron-star observables using a Bayesian approach, based on the standard…

Nuclear Theory · Physics 2024-07-23 Jia Zhou , Jun Xu

An alternative way to constrain the density dependence of the symmetry energy with the slope of the neutron skin thickness of nuclei which shows a linear relation to both the isospin asymmetry and the nuclear charge with a form of Z^{2/3}…

Nuclear Theory · Physics 2011-08-02 Min Liu , Zhuxia Li , Ning Wang , Fengshou Zhang

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

Motivated by recent parity violating electron scattering experiments, we compute the Neutron Skin Thickness (NST) of nuclei modelled as (quantized) Skyrmions, the topological solitons of the Skyrme model. We show how in a certain…

Nuclear Theory · Physics 2023-12-08 Alberto García Martín-Caro , Chris Halcrow

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…

Nuclear Theory · Physics 2014-07-02 Zhen Zhang , Lie-Wen Chen

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 establish a correlation for the symmetry energy at saturation density $S_{0}$, slope parameter $L$ and curvature parameter $K_{\text{sym}}$ based on widely different mean field interactions. With the help of this correlation and…

Nuclear Theory · Physics 2012-09-11 Jianmin Dong , Wei Zuo , Jianzhong Gu , Umberto Lombardo

Expressing explicitly the parameters of the standard Skyrme interaction in terms of the macroscopic properties of asymmetric nuclear matter, we show in the Skyrme-Hartree-Fock approach that unambiguous correlations exist between observables…

Nuclear Theory · Physics 2012-03-27 Lie-Wen Chen , Che Ming Ko , Bao-An Li , Jun Xu

The neutron-skin thickness of asymmetric semi-infinite nuclear matter is shown to be a function of Coulomb energy, the asymmetry-energy coefficient($J$), the slope($L$) of the asymmetry energy, and the incompressibility coefficient, in…

Nuclear Theory · Physics 2022-06-15 Toshio Suzuki

We perform a systematic analysis of the density dependence of the nuclear symmetry energy within the microscopic Brueckner--Hartree--Fock (BHF) approach using the realistic Argonne V18 nucleon-nucleon potential plus a phenomenological three…

Nuclear Theory · Physics 2009-11-02 Isaac Vidana , Constanca Providencia , Artur Polls , Arnau Rios

The nucleon density distributions and the thickness of pure neutron matter in Ca isotopes were systematically studied using the Skyrme-Hartree-Fock model (SHF) from the $\beta$-stability line to the neutron drip-line. The pure neutron…

Nuclear Theory · Physics 2009-11-06 Soojae Im , J. Meng

We investigate possible correlations between the stiffness of the symmetry energy at saturation density, the so-called $L$ parameter, and the neutron skin thickness of ${^{48}}$Ca and ${^{208}}$Pb, for which the recent measurements from the…

Nuclear Theory · Physics 2025-03-25 G. F. Burgio , H. C. Das , I. Vidana

We study the diversities in the properties of the neutron stars arising due to the different choices for the cross-coupling between various mesons which governs the density dependence of the nuclear symmetry energy in the extended…

Nuclear Theory · Physics 2018-07-25 N. Alam , A. Sulaksono , B. K. Agrawal

The correlation between the thickness of the neutron skin in Pb-208, and the degree of isospin diffusion in heavy-ion collisions is examined. The same equation of state is used to compute the degree of isospin diffusion in an…

Nuclear Theory · Physics 2007-05-23 Andrew W. Steiner , Bao-An Li

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
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