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Decay-Out Of Superdeformed Bands By Coupling To Ordered Or Chaotic Spectra

Døssing, T; Lopez-Martens, A.P.; Khoo, T.L.; Lauritsen, T and Åberg, Sven LU (2005) In AIP Conference Proceedings 764(1). p.27-33
Abstract
Different treatments of the decay-out of superdeformed bands are reviewed, focusing on the role of the normally deformed doorway states to which the superdeformed band primarily couples at decay-out. A schematic description based on sparse GOE matrices is formulated for the normally deformed states including one doorway state. This allows for a gradual change of the normally deformed spectrum from an ordered to a chaotic situation by means of the effective dimensionality parameter. It is found that the distribution of the small normally deformed admixtures into the superdeformed band, through which it decays, depends sensitively on the effective dimensionality parameter. Analyzing the measured distribution of transition strength of... (More)
Different treatments of the decay-out of superdeformed bands are reviewed, focusing on the role of the normally deformed doorway states to which the superdeformed band primarily couples at decay-out. A schematic description based on sparse GOE matrices is formulated for the normally deformed states including one doorway state. This allows for a gradual change of the normally deformed spectrum from an ordered to a chaotic situation by means of the effective dimensionality parameter. It is found that the distribution of the small normally deformed admixtures into the superdeformed band, through which it decays, depends sensitively on the effective dimensionality parameter. Analyzing the measured distribution of transition strength of decay-out gamma-ray lines in 194Hg, it is concluded that the spectrum of normally deformed states is closer to the chaotic than the ordered situation at the energy and angular momentum of the superdeformed band. ©2005 American Institute of Physics (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
AIP Conference Proceedings
volume
764
issue
1
pages
27 - 33
publisher
American Institute of Physics
external identifiers
  • scopus:33748994019
DOI
10.1063/1.1905287
language
English
LU publication?
yes
id
3a2ae8b5-06b1-43fe-bf4c-3a423e2f79a7 (old id 965534)
date added to LUP
2008-01-28 15:51:19
date last changed
2017-01-01 07:59:23
@article{3a2ae8b5-06b1-43fe-bf4c-3a423e2f79a7,
  abstract     = {Different treatments of the decay-out of superdeformed bands are reviewed, focusing on the role of the normally deformed doorway states to which the superdeformed band primarily couples at decay-out. A schematic description based on sparse GOE matrices is formulated for the normally deformed states including one doorway state. This allows for a gradual change of the normally deformed spectrum from an ordered to a chaotic situation by means of the effective dimensionality parameter. It is found that the distribution of the small normally deformed admixtures into the superdeformed band, through which it decays, depends sensitively on the effective dimensionality parameter. Analyzing the measured distribution of transition strength of decay-out gamma-ray lines in 194Hg, it is concluded that the spectrum of normally deformed states is closer to the chaotic than the ordered situation at the energy and angular momentum of the superdeformed band. ©2005 American Institute of Physics},
  author       = {Døssing, T and Lopez-Martens, A.P. and Khoo, T.L. and Lauritsen, T and Åberg, Sven},
  language     = {eng},
  number       = {1},
  pages        = {27--33},
  publisher    = {American Institute of Physics},
  series       = {AIP Conference Proceedings},
  title        = {Decay-Out Of Superdeformed Bands By Coupling To Ordered Or Chaotic Spectra},
  url          = {http://dx.doi.org/10.1063/1.1905287},
  volume       = {764},
  year         = {2005},
}