Chiral bands, dynamical spontaneous symmetry breaking, and the selection rule for electromagnetic transitions in the chiral geometry
(2004) In Physical Review Letters 93(17).- Abstract
- A model for a special configuration in triaxial odd-odd nuclei is constructed which exhibits degenerate chiral bands with a sizable rotation, a manifestation of dynamical spontaneous symmetry breaking. A quantum number obtained from the invariance of the model Hamiltonian, which characterizes observable states, is given and selection rules for electromagnetic transition probabilities in chiral bands is derived in terms of this quantum number. The degeneracy of the lowest two bands is indeed obtained in the numerical diagonalization of the Hamiltonian at an intermediate spin range, over which electromagnetic transitions follow exactly the selection rule expected for the chiral geometry.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/263648
- author
- Koike, T ; Starosta, K and Hamamoto-Kuroda, Ikuko LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 93
- issue
- 17
- article number
- 172502
- publisher
- American Physical Society
- external identifiers
-
- wos:000224662700020
- scopus:19744381496
- pmid:15525069
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.93.172502
- 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
- eec40e5b-45fd-4be4-bf99-28c02be204b6 (old id 263648)
- date added to LUP
- 2016-04-01 11:50:12
- date last changed
- 2022-04-05 05:44:49
@article{eec40e5b-45fd-4be4-bf99-28c02be204b6, abstract = {{A model for a special configuration in triaxial odd-odd nuclei is constructed which exhibits degenerate chiral bands with a sizable rotation, a manifestation of dynamical spontaneous symmetry breaking. A quantum number obtained from the invariance of the model Hamiltonian, which characterizes observable states, is given and selection rules for electromagnetic transition probabilities in chiral bands is derived in terms of this quantum number. The degeneracy of the lowest two bands is indeed obtained in the numerical diagonalization of the Hamiltonian at an intermediate spin range, over which electromagnetic transitions follow exactly the selection rule expected for the chiral geometry.}}, author = {{Koike, T and Starosta, K and Hamamoto-Kuroda, Ikuko}}, issn = {{1079-7114}}, language = {{eng}}, number = {{17}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Chiral bands, dynamical spontaneous symmetry breaking, and the selection rule for electromagnetic transitions in the chiral geometry}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.93.172502}}, doi = {{10.1103/PhysRevLett.93.172502}}, volume = {{93}}, year = {{2004}}, }