52 citations · 146 across the 8 of their papers we have counts for
7 papers · 1 filter
Higher-rank discrete symmetries in the IBM. III Tetrahedral shapes
Piet Van Isacker, Abdelhamid Bouldjedri, Salima Zerguine
In the context of the sf-IBM, the interacting boson model with s and f bosons, the conditions are derived for a rotationally invariant and parity-conserving Hamiltonian with up to…
Higher-rank discrete symmetries in the IBM. II Octahedral shapes: Dynamical symmetries
A. Bouldjedri, S. Zerguine, P. Van Isacker
The symmetries of the sdg-IBM, the interacting boson model with s, d and g bosons, are studied as regards the occurrence of shapes with octahedral symmetry. It is shown that no sdg…
Properties of isocalar-pair condensates
P. Van Isacker, A. O. Macchiavelli, P. Fallon +1
It is pointed out that the ground state of n neutrons and n protons in a single-j shell, interacting through an isoscalar (T=0) pairing force, is not paired, J=0, but rather spin-a…
Higher-rank discrete symmetries in the IBM. I Octahedral shapes: general Hamiltonian
P. Van Isacker, A. Bouldjedri, S. Zerguine
In the context of the interacting boson model with , and bosons, the conditions for obtaining an intrinsic shape with octahedral symmetry are derived for a general Hamil…
Consistent description of nuclear charge radii and electric monopole transitions
S. Zerguine, P. Van Isacker, A. Bouldjedri
A systematic study of energy spectra throughout the rare-earth region (even-even nuclei from Ce to W) is carried out in the framework of the interacting boson model (…
Phase transitions in the interacting boson model
P. Van Isacker, A. Bouldjedri, S. Zerguine
A geometric analysis of the interacting boson model is performed. A coherent-state is used in terms of three types of deformation: axial quadrupole (), axial hexadecapol…