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Structure of Warm Nuclei

Åberg, Sven LU and Uhrenholt, Henrik LU (2009) 1st International Ulaanbaatar Conference on Nuclear Physics and Applications 1109. p.3-10
Abstract
We study the structure of nuclei in the energy region between the ground state and the neutron separation energy, here called warm nuclei. The onset of chaos in the nucleus as excitation energy is increased is briefly reviewed. Chaos implies fluctuations of energies and wave functions qualitatively the same for all chaotic nuclei. On the other hand, large structure effects are seen, e.g. in the level-density function at same excitation energies. A microscopic model for the level density is reviewed and we discuss effects on structure of the total level-density function, parity enhancement, and the spin distribution function. Comparisons to data are performed at the neutron separation energy for all observed nuclei, and structure of the... (More)
We study the structure of nuclei in the energy region between the ground state and the neutron separation energy, here called warm nuclei. The onset of chaos in the nucleus as excitation energy is increased is briefly reviewed. Chaos implies fluctuations of energies and wave functions qualitatively the same for all chaotic nuclei. On the other hand, large structure effects are seen, e.g. in the level-density function at same excitation energies. A microscopic model for the level density is reviewed and we discuss effects on structure of the total level-density function, parity enhancement, and the spin distribution function. Comparisons to data are performed at the neutron separation energy for all observed nuclei, and structure of the level-density function for a few measured cases. The role of structure effects in the level-density function for fission dynamics is exemplified. (Less)
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author
and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Quantum chaos, residual interaction, level density, parity enhancement, fission dynamics, spin distribution function
host publication
AIP Conference Proceedings (Nuclear Physics and Applications)
volume
1109
pages
3 - 10
publisher
American Institute of Physics (AIP)
conference name
1st International Ulaanbaatar Conference on Nuclear Physics and Applications
conference location
Ulaanbaatar, Mongolia
conference dates
2008-09-08 - 2008-09-11
external identifiers
  • wos:000267291500001
  • scopus:65549119623
ISSN
1551-7616
0094-243X
DOI
10.1063/1.3122258
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
528b55ea-53ad-4474-90e3-1f6fc82fad8e (old id 1441506)
date added to LUP
2016-04-01 11:41:15
date last changed
2021-05-26 02:19:31
@inproceedings{528b55ea-53ad-4474-90e3-1f6fc82fad8e,
  abstract     = {We study the structure of nuclei in the energy region between the ground state and the neutron separation energy, here called warm nuclei. The onset of chaos in the nucleus as excitation energy is increased is briefly reviewed. Chaos implies fluctuations of energies and wave functions qualitatively the same for all chaotic nuclei. On the other hand, large structure effects are seen, e.g. in the level-density function at same excitation energies. A microscopic model for the level density is reviewed and we discuss effects on structure of the total level-density function, parity enhancement, and the spin distribution function. Comparisons to data are performed at the neutron separation energy for all observed nuclei, and structure of the level-density function for a few measured cases. The role of structure effects in the level-density function for fission dynamics is exemplified.},
  author       = {Åberg, Sven and Uhrenholt, Henrik},
  booktitle    = {AIP Conference Proceedings (Nuclear Physics and Applications)},
  issn         = {1551-7616},
  language     = {eng},
  pages        = {3--10},
  publisher    = {American Institute of Physics (AIP)},
  title        = {Structure of Warm Nuclei},
  url          = {http://dx.doi.org/10.1063/1.3122258},
  doi          = {10.1063/1.3122258},
  volume       = {1109},
  year         = {2009},
}