中文
相关论文

相关论文: The isovector dipole strength in nuclei with extre…

200 篇论文

The ground-state properties of Zr and Sn isotopes are studied within the relativistic mean field theory. Zr and Sn isotopes have received tremendous attention due to various reasons, including the predicted giant halos in the neutron-rich…

核理论 · 物理学 2008-11-26 L. S. Geng , H. Toki , J. Meng

Large-scale calculations of the E1 strength are performed within the random phase approximation (RPA) based on the relativistic point-coupling mean field approach in order to derive the radiative neutron capture cross sections for all…

核理论 · 物理学 2015-06-11 I. Daoutidis , S. Goriely

Shapes and high-spin properties of nuclei from the neutron-rich (N>56) zirconium region are calculated using the Nilsson-Strutinsky method with the cranked Woods-Saxon average potential and monopole pairing residual interaction. The shape…

核理论 · 物理学 2009-10-30 J. Skalski , S. Mizutori , W. Nazarewicz

Unlike their lighter counterparts, most odd-odd N=Z nuclei with mass A > 40 40 have ground states with isospin T=1, suggesting an increased role for the isovector pairing interaction. A simple SO(5) seniority-like model of this interaction…

核理论 · 物理学 2008-11-26 J. Engel , K. Langanke , P. Vogel

We present a study on the isoscalar quadrupole strength in tin nuclei, focusing mainly on the low-energy region. The calculations are performed using the Skyrme type energy density functionals within the fully self-consistent quasiparticle…

核理论 · 物理学 2018-06-15 E. Yüksel , G. Colò , E. Khan , Y. F. Niu

The origin of the dominance of prolate shapes over oblate ones of the ground states of atomic nuclei is investigated with the Nilsson-Strutinsky method. The number of prolate nuclei among all the deformed even-even nuclei is calculated as a…

核理论 · 物理学 2009-11-07 Naoki Tajima , Norifumi Suzuki

A new Nilsson single-particle structure is proposed for neutron-rich nuclei near $^{132}$Sn. In general, a large reduction in spin-orbit interaction is required and the neutron $N = 82$ gap persists in the new set of parameters. The ground…

核理论 · 物理学 2016-09-08 Jing-ye Zhang , Yang Sun , Mike Guidry , L. L. Riedinger , G. A. Lalazissis

Physics of nuclei at extreme values of the isospin is at the focus of present-day nuclear science. Experimentally, thanks to existing and emerging radioactive-ion-beam facilities, we are on the verge of invading the territory of extreme N/Z…

核理论 · 物理学 2011-04-15 J. Dobaczewski

Pseudo-SU(3) shell-model results are reported for M1 excitation strengths in 157-Gd, 163-Dy and 169-Tm in the energy range between 2 and 4 MeV. Non-zero pseudo-spin couplings between the configurations play a very important role in…

核理论 · 物理学 2009-11-07 Carlos E. Vargas , Jorge G. Hirsch , Jerry P. Draayer

The observation of large E1 strength near threshold in the electromagnetic dissociation of 11Li poses a fundamental question: Is the large E1 strength due to the threshold or is it due to a low lying E1 state? Such molecular cluster states…

核理论 · 物理学 2007-05-23 Moshe Gai

The soft dipole modes in neutron rich even-even Ni-isotopes are investigated in the quasiparticle relativistic random phase approximation. We study the evolution of strengths distribution, centroid energies of dipole excitation in low-lying…

核理论 · 物理学 2009-11-11 Li-Gang Cao , Zhong-Yu Ma

In this work, we have analyzed the structural properties of even-even $^{126-188}Nd_{60}$ isotopes. For this we have used axially deformed Relativistic Mean Field (RMF) model with PK1 and NL-SH parametrization. In structural properties, We…

核理论 · 物理学 2026-05-07 P. Mohanty , C. Dash , A. Anupam , B. B. Sahu

We investigate outer crust compositions for a wide range of magnetic field strengths, up to $B\simeq 4\times10^{18}$ G, employing the latest experimental nuclear masses supplemented with various mass models. The essential effects of the…

核理论 · 物理学 2023-02-17 Kazuyuki Sekizawa , Kentaro Kaba

Examples of the change of neutron shell-structure in both weakly-bound and resonant neutron one-particle levels in nuclei towards the neutron drip line are exhibited. It is shown that the shell-structure change due to the weak binding may…

核理论 · 物理学 2010-05-07 Ikuko Hamamoto

We argue that many features of the structure of nuclei emerge from a strictly perturbative expansion around the unitarity limit, where the two-nucleon S waves have bound states at zero energy. In this limit, the gross features of states in…

核理论 · 物理学 2017-05-18 Sebastian König , Harald W. Grießhammer , H. -W. Hammer , U. van Kolck

The coexistence of various structures, such as diverse shapes and cluster structures, is a fundamental property of atomic nuclei. In neutron-rich nuclei, a core$+n$ structure can compete with nuclear deformation due to the small neutron…

Coulomb excitation of the exotic neutron-rich nucleus Ne26 on a Pb208 target was measured at 58 MeV/u in order to search for low-lying E1 strength above the neutron emission threshold. This radioactive beam experiment was carried out at the…

The role of three-nucleon forces (3NF) in the description of nuclear structure properties is nowadays a main topic in the field of microscopic many-nucleon calculations. We investigate the relative weight between effective two- and…

核理论 · 物理学 2015-07-02 L. Coraggio , A. Gargano , N. Itaco

With the experimental data at the national nuclear data center, NNDC, we investigate systematically the emerging nuclear structure properties in the first 2+ excited energies, E(2+) and their energy ratios to the first 4+ levels, R =…

核理论 · 物理学 2016-04-12 Chang-Bum Moon

The effect of temperature on the evolution of the isovector dipole and isoscalar quadrupole excitations in $^{68}$Ni and $^{120}$Sn nuclei is studied within the fully self-consistent finite temperature quasiparticle random phase…

核理论 · 物理学 2017-08-09 E. Yüksel , G. Colò , E. Khan , Y. F. Niu , K. Bozkurt