中文
相关论文

相关论文: Chiral and magnetic rotation in atomic nuclei stud…

200 篇论文

It is widely believed that chiral symmetry is restored not only at high temperatures, but also at high nuclear densities. The drop of the order parameter of the chiral phase transition, the chiral condensate, with density has indeed been…

高能物理 - 唯象学 · 物理学 2009-01-30 Ulrich Mosel

Semi-realistic nucleon-nucleon interactions applicable to the self-consistent mean-field (both Hartree-Fock and Hartree-Fock-Bogolyubov) calculations are developed, by modifying the M3Y interaction. The modification is made so as to…

核理论 · 物理学 2014-11-18 H. Nakada

We discuss the relevance of the scalar modes appearing in chiral theories with spontaneous symmetry breaking such as the NJL model for nuclear matter studies. We show that it depends on the relative role of chiral symmetry breaking and…

核理论 · 物理学 2011-02-03 G. Chanfray , M. Ericson

Electron scattering is a tool that can provide relatively clean view of the nuclear structure in both ground and excited states, as it depends on the well-known electromagnetic interaction. But since the common expressions for its cross…

核理论 · 物理学 2019-08-14 Anton Repko , Jan Kvasil

The role of QCD scales and chiral symmetry in finite nuclei is examined. The Dirac-Hartree mean-field coupling constants of Nikolaus, Hoch, and Madland (NHM) are scaled in accordance with the QCD-based prescription of Manohar and Georgi.…

核理论 · 物理学 2008-11-26 J. L. Friar , D. G. Madland , B. W. Lynn

The experimental features of positive-parity doublet bands in the odd-\emph{A} cesium isotopes $^{125,127,129,131}$Cs, including angular momentum alignment, energy staggering, $B(M1)/B(E2)$ etc. are studied systematically and compared to…

核理论 · 物理学 2019-10-11 Rui Guo , Wu-Ji Sun , Jian Li , Dong Yang , Yonghao Liu , Chengkun Ru , Jihuai Chi

We implement for the first time the simulated annealing method (SAM) to the problem of searching for the global minimum in the hyper-surface of the chi-square function which depends on the values of the parameters of a Skyrme type effective…

核理论 · 物理学 2008-11-26 B. K. Agrawal , S. Shlomo , V. Kim Au

We explore the use of mean field models to approximate microscopic nuclear equations of state derived from chiral effective field theory across the densities and temperatures relevant for simu- lating astrophysical phenomena such as…

核理论 · 物理学 2016-06-22 Ermal Rrapaj , Alessandro Roggero , Jeremy W. Holt

Time-odd mean fields (nuclear magnetism) and their impact on physical observables in rotating nuclei are studied in the framework of covariant density functional theory (CDFT). It is shown that they have profound effect on the dynamic and…

核理论 · 物理学 2014-11-21 A. V. Afanasjev , H. Abusara

The effect of nuclear superfluidity on antimagnetic rotation bands in $^{105}$Cd and $^{106}$Cd are investigated by the cranked shell model with the pairing correlations and the blocking effects treated by a particle-number conserving…

核理论 · 物理学 2013-05-17 Zhen-Hua Zhang , Peng-Wei Zhao , Jie Meng , Jin-Yan Zeng , En-Guang Zhao , Shan-Gui Zhou

Two distinct sets of chiral-partner bands have been identified in the nucleus $^{133}$Ce. They constitute a multiple chiral doublet (M$\chi$D), a phenomenon predicted by relativistic mean field (RMF) calculations and observed experimentally…

Beyond mean-field methods are very successful tools for the description of large-amplitude collective motion for even-even atomic nuclei. The state-of-the-art framework of these methods consists in a Generator Coordinate Method based on…

核理论 · 物理学 2014-10-22 B. Bally , B. Avez , M. Bender , P. -H. Heenen

We discuss major differences between electric and magnetic excitations in nuclei appearing in self-consistent calculation based on Skyrme energy-density functionals. Tools of analysis are Landau-Migdal parameters for bulk properties and RPA…

核理论 · 物理学 2020-01-22 J. Speth , P. -G. Reinhard , V. Tselyaev , N. Lyutorovich

Magnetic form factors corresponding to elastic electron scattering from odd-A nuclei are presented. The calculations are carried out in plane-wave Born approximation. The one-body properties are obtained in a deformed self-consistent…

We present a large scale survey of life-times for spontaneous fission in the regime of super-heavy elements (SHE), i.e. nuclei with Z=104-122. This is done on the basis of the Skyrme-Hartree-Fock model. The axially symmetric fission path is…

核理论 · 物理学 2010-02-02 N. Schindzielorz , J. Erler , P. Klüpfel , P. -G. Reinhard , G. Hager

We study the properties of the nuclear rotational excitations with hypothetical tetrahedral symmetry by employing the microscopic mean-field and residual-interaction Hamiltonians with angular-momentum and parity projection method; we focus…

核理论 · 物理学 2015-06-12 Shingo Tagami , Yoshifumi R. Shimizu , Jerzy Dudek

X-ray circular dichroism, arising from the contrast in X-ray absorption between opposite photon helicities, serves as a spectroscopic tool to measure the magnetization of ferromagnetic materials and identify the handedness of chiral…

We consider a novel approach to the nuclear shell model. The one-dimensional harmonic oscillator in a box is used to introduce the concept of an oblique-basis shell-model theory. By implementing the Lanczos method for diagonalization of…

核理论 · 物理学 2010-02-18 V. G. Gueorguiev

The nuclear time-dependent Hartree-Fock model formulated in the three-dimensional space,based on the full Skyrme energy density functional and complemented with the tensor force,is presented for the first time. Full self-consistency is…

核理论 · 物理学 2015-03-03 S. Fracasso , E. B. Suckling , P. D. Stevenson

Nematic twist--bend is the fifth nematic phase recognized in nature. This phase exhibits spiral orientational order, thus it is a chiral structure and it can be stabilized in systems composed of achiral molecules. The microscopic origin of…

软凝聚态物质 · 物理学 2018-11-14 Grzegorz Pająk , Lech Longa , Agnieszka Chrzanowska