Jolos, R. V. and von Brentano, P. (2015). Stabilization of octupole deformation with angular-momentum increase in the alternating-parity bands. Phys. Rev. C, 92 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X
Full text not available from this repository.Abstract
Background: Low-lying octupole collective excitations play an important role in describing the structure of nuclei in different regions of the nuclide chart. Ground state alternating-parity rotational bands combining both positive-and negative-parity states are known in several nuclei. The experimental data indicate that octupole deformation becomes stable with increase of the angular momentum. Purpose: We introduce a nondimensional characteristic of the spectra of the ground state alternating-parity bands and apply it to investigation of a stabilization of the octupole deformation with increase of the angular momentum. Method: We analyze the experimental data on the energies of the states belonging to the alternating-parity bands based on the ratio of the interpolated and the experimental energies of the negative-parity states. Interpolated energies are determined by the experimental energies of the neighboring positive-parity states assuming smooth dependence on the angular momentum. Results: The values of the ratio of the interpolated and the experimental energies of the negative-parity states belonging to the ground state alternating-parity bands of Ba-144,Ba-146 and some rare-earth and actinide nuclei are evaluated. Conclusion: It is shown that the angular-momentum dependence of the ratio of the interpolated and the experimental energies of the negative-parity states belonging to the ground state alternating-parity bands of Ba-144,Ba-146 and some rare-earth and actinide nuclei indicates stabilization of the octupole deformation with angular-momentum increase.
Item Type: | Journal Article | ||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-389548 | ||||||||||||
DOI: | 10.1103/PhysRevC.92.044318 | ||||||||||||
Journal or Publication Title: | Phys. Rev. C | ||||||||||||
Volume: | 92 | ||||||||||||
Number: | 4 | ||||||||||||
Date: | 2015 | ||||||||||||
Publisher: | AMER PHYSICAL SOC | ||||||||||||
Place of Publication: | COLLEGE PK | ||||||||||||
ISSN: | 1089-490X | ||||||||||||
Language: | English | ||||||||||||
Faculty: | Unspecified | ||||||||||||
Divisions: | Unspecified | ||||||||||||
Subjects: | no entry | ||||||||||||
Uncontrolled Keywords: |
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URI: | http://kups.ub.uni-koeln.de/id/eprint/38954 |
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