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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…

核理论 · 物理学 2010-05-27 M. Warda , X. Viñas , X. Roca-Maza , M. Centelles

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…

核理论 · 物理学 2023-01-23 S. J. Novario , D. Lonardoni , S. Gandolfi , G. Hagen

The classical nucleation theory (CNT) concept of a nucleus as a fragment of the bulk new phase fails for nanosized nuclei. An extension of CNT taking into account the properties of the transition region between coexisting bulk phases is…

化学物理 · 物理学 2017-06-09 Nikolay V. Alekseechkin

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…

核理论 · 物理学 2015-06-19 Stefan Typel

We redefine the surface tension coefficient and the symmetry energy for an asymmetric nuclear Fermi-liquid drop with a finite diffuse layer. Considering two-component charged Fermi-liquid drop and following Gibbs-Tolman concept, we…

核理论 · 物理学 2015-06-16 V. M. Kolomietz , A. I. Sanzhur

We analyze the influence of the single-particle structure on the neutron density distribution and the neutron skin in Ca, Ni, Zr, Sn, and Pb isotopes. The nucleon density distributions are calculated in the Hartree-Fock+BCS approach with…

核理论 · 物理学 2014-06-06 M. Warda , M. Centelles , X. Vinas , X. Roca-Maza

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…

核理论 · 物理学 2012-03-22 V. M. Kolomietz , S. V. Lukyanov , A. I. Sanzhur

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

We examine whether or not the surface tension acts to increase the nucleon density in the nuclear interior within a compressible liquid-drop model. We find that it depends on the density dependence of the surface tension, which may in turn…

核理论 · 物理学 2009-11-10 Kei Iida , Kazuhiro Oyamatsu

The neutron skin and halo distributions in medium and heavy nuclei are calculated within the extended Thomas-Fermi approximation. Calculations are carried out for the effective Skyrme-like forces using the direct variational method. The…

核理论 · 物理学 2018-12-18 S. V. Lukyanov , A. I. Sanzhur

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…

核理论 · 物理学 2020-11-03 Usuf Rahaman , M. Ikram , M. Imran , Anisul Ain Usmani

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

We review the diffuse scattering and the loss coefficient in ultracold neutron reflection from slightly rough surfaces, report a surprising reduction in loss coefficient due to roughness, and discuss the possibility of transition from…

其他凝聚态物理 · 物理学 2010-12-23 A. Steyerl , S. S. Malik , A. M. Desai , C. Kaufman

We suggest a particular procedure of derivation of the beta-stability line and isotopic symmetry energy. The behavior of the symmetry energy coefficient $b(A,N-Z)$ is analyzed. We redefine the surface tension coefficient and the surface…

核理论 · 物理学 2014-11-11 V. M. Kolomietz , A. I. Sanzhur

We redefine the surface tension coefficient for a nuclear Fermi-liquid drop with a finite diffuse layer. Following Gibbs-Tolman concept, we introduce the equimolar radius R_e of sharp surface droplet at which the surface tension is applied…

核理论 · 物理学 2015-05-30 V. M. Kolomietz , S. V. Lukyanov , A. I. Sanzhur

We employ a variational method, in the framework of the Thomas-Fermi approximation, to study the effect of the symmetry energy on the neutron skin thickness and the symmetry energy coefficients of various neutron rich nuclei. We concentrate…

核理论 · 物理学 2017-05-17 M. C. Papazoglou , Ch. C. Moustakidis

After reviewing our microscopic approach to nuclear and neutron-rich matter, we focus on how nucleon-nucleon scattering is impacted by the presence of a dense hadronic medium, with special emphasis on the case where neutron and proton…

核理论 · 物理学 2015-06-16 Francesca Sammarruca

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

In this work, we study the influence of nuclear medium effects on various parton model sum rules in nuclei and compare the results with the free nucleon case. We have used relativistic nucleon spectral function to take into account Fermi…

核理论 · 物理学 2016-12-21 F. Zaidi , H. Haider , M. Sajjad Athar , S. K. Singh , I. Ruiz Simo

We demonstrate that the matter density distribution in the surface region is determined well by the use of the relatively low-intensity beams that become available at the upcoming radioactive beam facilities. Following the method used in…

核理论 · 物理学 2009-11-07 Akihisa Kohama , Ryoichi Seki , Akito Arima , Shuhei Yamaji
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