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In extracting deformation parameters from multipole moments for deformed nuclei, one commonly uses the formulas which are based on a sharp-cut density distribution. We discuss a possible ambiguity for this procedure and clarify the role of…

核理论 · 物理学 2009-11-11 K. Hagino , N. W. Lwin , M. Yamagami

We study the properties of neutron-star crust within a Bayesian framework based on a unified relativistic mean-field (RMF) description of dense matter. The analysis focuses on the posterior distributions of crust properties, constrained by…

核理论 · 物理学 2026-01-13 Vishal Parmar , Ignazio Bombaci

Background: The density of most nuclei is constant in the central region and is smoothly decreasing at the surface. A depletion in the central part of the nuclear density can have nuclear structure effects leading to the formation of…

核理论 · 物理学 2020-10-07 V. Choudhary , W. Horiuchi , M. Kimura , R. Chatterjee

Empirically determined values of the nuclear volume and surface symmetry energy coefficients from nuclear masses are expressed in terms of density distributions of nucleons in heavy nuclei in the local density approximation. This is then…

核理论 · 物理学 2015-06-16 B. K. Agrawal , J. N. De , S. K. Samaddar , G. Colo , A. Sulaksono

Background: The density dependence of nuclear symmetry energy is crucial in determining several properties of finite nuclei to the neutron stars with mass $\sim$ 1.4 $M_\odot$. The values of neutron skin thickness, isovector giant dipole…

核理论 · 物理学 2023-03-23 T. Ghosh , Sangeeta , G. Saxena , B. K. Agrawal , Ushasi Datta

Nuclear deformations and density profiles of neutron-rich even-even Zr isotopes are investigated using the Skyrme-Hartree-Fock-Bogoliubov method. Large quadrupole and hexadecapole deformations are predicted along with large enhancement of…

核理论 · 物理学 2023-05-10 W. Horiuchi , T. Inakura , S. Michimasa , M. Tanaka

Nuclear and neutron matters are investigated in the low density region, well below the nuclear saturation density. Microscopic calculations, based on the Bethe-Brueckner approach with a few realistic nucleon-nucleon potentials, are compared…

核理论 · 物理学 2011-07-19 M. Baldo , C. Maieron , P. Schuck , X. Vinas

The dependence between neutron-to-proton yield ratio ($R_{np}$) and neutron skin thickness ($\delta_{np}$) in neutron-rich projectile induced reactions is investigated within the framework of the Isospin-Dependent Quantum Molecular Dynamics…

核理论 · 物理学 2009-12-22 X. Y. Sun , D. Q. Fang , Y. G. Ma , X. Z. Cai , J. G. Chen , W. Guo , W. D. Tian , H. W. Wang

Nuclear superfludity in exotic nuclei close to the drip lines and in the inner crust matter of neutron stars have common features which can be treated with the same theoretical tools. In the first part of my lecture I discuss how two such…

核理论 · 物理学 2017-08-23 Nicolae Sandulescu

Surface and curvature properties of asymmetric nuclear matter are studied beyond the proton drip. Using the semiclassical extended Thomas-Fermi method, the calculations are performed in the non-relativistic and relativistic meson field…

核理论 · 物理学 2009-10-30 M. Centelles , M. Del Estal , X. Vinas

We study the bulk deformation properties of the Skyrme nuclear energy density functionals. Following simple arguments based on the leptodermous expansion and liquid drop model, we apply the nuclear density functional theory to assess the…

核理论 · 物理学 2011-03-22 N. Nikolov , N. Schunck , W. Nazarewicz , M. Bender , J. Pei

Neutron-rich nuclei exhibit a variety of intriguing features associated with nuclear structure evolution, deformation, and other phenomena. Particularly interesting is the region in the chart of nuclides around Z = 12 and N = 20, commonly…

核实验 · 物理学 2024-12-24 J. Kahlbow

The fragment yield ratios were investigated in the fission of 238,233U targets induced by 14 MeV neutrons. The isoscaling behavior was typically observed for the isotopic chains of fragments ranging from the proton-rich to the most…

核实验 · 物理学 2009-11-10 M. Veselsky , G. A. Souliotis , M. Jandel

Starting from light to superheavy nuclei, we have calculated the effective surface properties such as the symmetry energy, neutron pressure, and symmetry energy curvature using the coherent density fluctuation model. The isotopic chains of…

核理论 · 物理学 2020-04-22 Abdul Quddus , M. Bhuyan , S. K. Patra

The X-ray cascade from antiprotonic atoms was studied for 208Pb and 209Bi. Widths and shifts of the levels due to the strong interaction were determined. Using modern antiproton-nucleus optical potentials the neutron densities in the…

In this review, we describe the experimental facilities and methods which make it possible to produce and measure the properties of the extreme neutron rich nuclei. We then develop the theoretical framework that will accompany us along the…

核理论 · 物理学 2021-06-11 Frédéric Nowacki , Alexandre Obertelli , Alfredo Poves

The ground-state properties of neutron-rich exotic Na and Mg isotopes with even numbers of neutrons, N, are studied up to driplines. The shell-model calculations with an ab initio effective nucleon-nucleon interaction reported in [Tsunoda,…

核理论 · 物理学 2022-02-02 Takaharu Otsuka , Noritaka Shimizu , Yusuke Tsunoda

A systematic study of the central depletion of proton density has been performed in the isotonic chains of nuclei with neutron numbers $N = 20$ and $28$ using different variants of the relativistic mean-field (RMF) models. These models…

核理论 · 物理学 2019-05-22 G. Saxena , M. Kumawat , B. K. Agrawal , Mamta Aggarwal

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

The transition density $\rho_{t}$ and pressure $P_{t}$ at the inner edge separating the liquid core from the solid crust of neutron stars are systematically studied using a modified Gogny (MDI) and 47 popular Skyrme interactions within well…

太阳与恒星天体物理 · 物理学 2010-01-15 Jun Xu , Lie-Wen Chen , Bao-An Li , Hong-Ru Ma