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Selection Rule for Electromagnetic Transitions in Nuclear Chiral Geometry

Hamamoto-Kuroda, Ikuko LU (2011) In International Journal of Modern Physics E 20(2). p.373-379
Abstract
In order to find the selection rules that can be applied to the electromagnetic transitions when the chiral geometry is achieved, a model for a special configuration in triaxial odd-odd nuclei is constructed which exhibits degenerate chiral bands with a sizable rotation. A quantum number obtained from the invariance of the Hamiltonian is given and the selection rule for electromagnetic transition probabilities in chiral bands is derived in terms of this quantum number. Among the available candidates for chiral bands of odd-odd nuclei, in which the near degeneracy of two Delta I = 1 bands is observed, the measured electromagnetic properties of the two bands in Cs-128(55)73 and Cs-126(55)71 are consistent with the rules, while those of... (More)
In order to find the selection rules that can be applied to the electromagnetic transitions when the chiral geometry is achieved, a model for a special configuration in triaxial odd-odd nuclei is constructed which exhibits degenerate chiral bands with a sizable rotation. A quantum number obtained from the invariance of the Hamiltonian is given and the selection rule for electromagnetic transition probabilities in chiral bands is derived in terms of this quantum number. Among the available candidates for chiral bands of odd-odd nuclei, in which the near degeneracy of two Delta I = 1 bands is observed, the measured electromagnetic properties of the two bands in Cs-128(55)73 and Cs-126(55)71 are consistent with the rules, while those of Pr-134(59)75 and La-132(57)75 are not. (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
International Journal of Modern Physics E
volume
20
issue
2
pages
373 - 379
publisher
World Scientific
external identifiers
  • wos:000289158000024
  • scopus:79953706900
ISSN
0218-3013
DOI
10.1142/S0218301311017740
language
English
LU publication?
yes
id
07881093-fdfe-49d5-8521-4013e0c80515 (old id 1965624)
date added to LUP
2011-05-20 13:33:20
date last changed
2017-01-01 06:06:08
@article{07881093-fdfe-49d5-8521-4013e0c80515,
  abstract     = {In order to find the selection rules that can be applied to the electromagnetic transitions when the chiral geometry is achieved, a model for a special configuration in triaxial odd-odd nuclei is constructed which exhibits degenerate chiral bands with a sizable rotation. A quantum number obtained from the invariance of the Hamiltonian is given and the selection rule for electromagnetic transition probabilities in chiral bands is derived in terms of this quantum number. Among the available candidates for chiral bands of odd-odd nuclei, in which the near degeneracy of two Delta I = 1 bands is observed, the measured electromagnetic properties of the two bands in Cs-128(55)73 and Cs-126(55)71 are consistent with the rules, while those of Pr-134(59)75 and La-132(57)75 are not.},
  author       = {Hamamoto-Kuroda, Ikuko},
  issn         = {0218-3013},
  language     = {eng},
  number       = {2},
  pages        = {373--379},
  publisher    = {World Scientific},
  series       = {International Journal of Modern Physics E},
  title        = {Selection Rule for Electromagnetic Transitions in Nuclear Chiral Geometry},
  url          = {http://dx.doi.org/10.1142/S0218301311017740},
  volume       = {20},
  year         = {2011},
}