Showing papers by "Jie Meng published in 1996"
TL;DR: Relativistic Hartree-Bogoliubov theory in coordinate space is used to describe the chain of lithium isotopes reaching from {sup 6}Li to {sup 11}Li, and the halo is reproduced in a self-consistent way, without further modifications, using the scattering of Cooper pairs to the 2{ital s}{sub 1/2} level in the continuum.
Abstract: Relativistic Hartree-Bogoliubov theory in coordinate space is used to describe the chain of lithium isotopes reaching from {sup 6}Li to {sup 11}Li. Pairing correlations are taken into account by a density dependent force of zero range. In contrast to earlier investigations within a relativistic mean field theory and a density dependent Hartree-Fock theory, where the halo in {sup 11}Li could only be reproduced by an artificial shift of the 1{ital p}{sub 1/2} level close to the continuum limit, the halo is now reproduced in a self-consistent way, without further modifications, using the scattering of Cooper pairs to the 2{ital s}{sub 1/2} level in the continuum. Excellent agreement with recent experimental data is observed. {copyright} {ital 1996 The American Physical Society.}
319 citations
TL;DR: In this article, the authors investigated the possibility that a C 4ν -symmetric hexadecapole deformation causes the observed ΔI = 2 staggering of rotational bands in even and odd-A nuclei.
19 citations
TL;DR: In this article, the authors compared the performance of the semi-classical tilted axis cranking approximation with the exact solutions of the model system of one and two particles coupled to an axial rotor.
Abstract: Comparing with the exact solutions of the model system of one and two particles coupled to an axial rotor, the quality of the semi classical tilted axis cranking approximation is investigated. Extensive comparisons of the energies and M1 and E2 transition probabilities are carried out for the lowest bands. Very good agreement is found, except near band crossings. Various recipes to take into account finite K within the frame of the usual principal axis cranking are included into the comparison. A set of rules is suggested that permits to construct the excited bands from the cranking configurations, avoiding spurious states.
14 citations