172 citations · 2.2k across the 119 of their papers we have counts for
6 papers · 2 filters
Shell Model Description of Gd
G. Popa, J. P. Draayer, J. G. Hirsch
The pseudo-SU(3) model is used to describe the low-energy spectra as well as and transition strengths in Gd. The Hamiltonian includes spherical single-particle en…
Pseudo SU(3) shell model: Normal parity bands in odd-mass nuclei
C. E. Vargas, J. G. Hirsch, J. P. Draayer
A pseudo shell SU(3) model description of normal parity bands in 159-Tb is presented. The Hamiltonian includes spherical Nilsson single-particle energies, the quadrupole-quadrupole…
Quasi-SU(3) truncation scheme for even-even sd-shell nuclei
C. E. Vargas, J. G. Hirsch, J. P. Draayer
The Quasi-SU(3) symmetry was uncovered in full pf and sdg shell-model calculations for both even-even and odd-even nuclei. It manifests itself through a dominance of single-particl…
SU(3) symmetry breaking in lower fp-shell nuclei
V. G. Gueorguiev, J. P. Draayer, C. W. Johnson
Results of shell-model calculations for lower fp-shell nuclei show that SU(3) symmetry breaking in this region is driven by the single-particle spin-orbit splitting. However, even…
Soliton excitations as emitted clusters on nuclear surfaces
R. A. Gherghescu, A. Ludu, J. P. Draayer
This work reports on calculations of the deformation energy of a nucleus plus an emitted cluster as a soliton moving on its surface. The potential barrier against the emission of a…
Shell model description of normal parity bands in odd-mass heavy deformed nuclei
C. E. Vargas, J. G. Hirsch, T. Beuschel +1
The low-energy spectra and B(E2) electromagnetic transition strengths of 159Eu, 159Tb and 159Dy are described using the pseudo SU(3) model. Normal parity bands are built as linear…