Abstract
Nuclear Hartree-Fock (HF) + BCS calculations have led to predictions of shape isomerism in isotopes. These have been confirmed through the observation of superdeformed rotational bands in {sup 190,...,194}Hg. We have extended these calculations to a wide range of contiguous nuclei. Microscopic mean field theory calculations have been performed for nuclei ranging from Gadolinium to Radon and a large number of these isotopes are predicted to exhibit shape isomerism. Where experiments have been performed within this isthmus of isomerism through observation of superdeformed bands built upon these predicted shape isomers, they are completely consistent with the measurements. We have compared the energy and position in collective space of the GCM eigenstates with those obtained in static HF+BCS calculation. We conclude from this study that the excitation energy of the SD band head or shape isomer predicted from HF+BCS methods is almost unaltered by the introduction of quadrupole correlations.
Bonche, P;
[1]
Flocard, H;
[2]
Meyer, J;
[3]
Heenen, P H;
[4]
Dobaczewski, J;
[5]
Krieger, S J;
Weiss, M S
[6]
- CEA Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France). Direction des Sciences de la Matiere
- Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire
- Lyon-1 Univ., 69 - Villeurbanne (France). Inst. de Physique Nucleaire
- Universite Libre de Bruxelles (BE)
- Warsaw Univ. (PL). Inst. Fizyki Teoretycznej
- Lawrence Berkeley Lab., CA (US)
Citation Formats
Bonche, P, Flocard, H, Meyer, J, Heenen, P H, Dobaczewski, J, Krieger, S J, and Weiss, M S.
A mean-field description of shape isomerism.
France: N. p.,
1991.
Web.
Bonche, P, Flocard, H, Meyer, J, Heenen, P H, Dobaczewski, J, Krieger, S J, & Weiss, M S.
A mean-field description of shape isomerism.
France.
Bonche, P, Flocard, H, Meyer, J, Heenen, P H, Dobaczewski, J, Krieger, S J, and Weiss, M S.
1991.
"A mean-field description of shape isomerism."
France.
@misc{etde_10122822,
title = {A mean-field description of shape isomerism}
author = {Bonche, P, Flocard, H, Meyer, J, Heenen, P H, Dobaczewski, J, Krieger, S J, and Weiss, M S}
abstractNote = {Nuclear Hartree-Fock (HF) + BCS calculations have led to predictions of shape isomerism in isotopes. These have been confirmed through the observation of superdeformed rotational bands in {sup 190,...,194}Hg. We have extended these calculations to a wide range of contiguous nuclei. Microscopic mean field theory calculations have been performed for nuclei ranging from Gadolinium to Radon and a large number of these isotopes are predicted to exhibit shape isomerism. Where experiments have been performed within this isthmus of isomerism through observation of superdeformed bands built upon these predicted shape isomers, they are completely consistent with the measurements. We have compared the energy and position in collective space of the GCM eigenstates with those obtained in static HF+BCS calculation. We conclude from this study that the excitation energy of the SD band head or shape isomer predicted from HF+BCS methods is almost unaltered by the introduction of quadrupole correlations.}
place = {France}
year = {1991}
month = {Dec}
}
title = {A mean-field description of shape isomerism}
author = {Bonche, P, Flocard, H, Meyer, J, Heenen, P H, Dobaczewski, J, Krieger, S J, and Weiss, M S}
abstractNote = {Nuclear Hartree-Fock (HF) + BCS calculations have led to predictions of shape isomerism in isotopes. These have been confirmed through the observation of superdeformed rotational bands in {sup 190,...,194}Hg. We have extended these calculations to a wide range of contiguous nuclei. Microscopic mean field theory calculations have been performed for nuclei ranging from Gadolinium to Radon and a large number of these isotopes are predicted to exhibit shape isomerism. Where experiments have been performed within this isthmus of isomerism through observation of superdeformed bands built upon these predicted shape isomers, they are completely consistent with the measurements. We have compared the energy and position in collective space of the GCM eigenstates with those obtained in static HF+BCS calculation. We conclude from this study that the excitation energy of the SD band head or shape isomer predicted from HF+BCS methods is almost unaltered by the introduction of quadrupole correlations.}
place = {France}
year = {1991}
month = {Dec}
}