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Different collectivity in the two signatures of the i13/2 stemming band in ¹⁶⁷Yb

Petkov, P. ; Gladnishki, K. A. ; Dewald, A. ; Möller, O. ; Deloncle, I. ; Reese, M. ; Fransen, C. ; Hackstein, M. ; Jolie, J. ; Pissulla, Th. ; Rother, W. ; Zell, K. O. (2024)
Different collectivity in the two signatures of the i13/2 stemming band in ¹⁶⁷Yb.
In: Journal of Physics: Conference Series, 2014, 533 (1)
doi: 10.26083/tuprints-00020830
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Different collectivity in the two signatures of the i13/2 stemming band in ¹⁶⁷Yb
Language: English
Date: 26 March 2024
Place of Publication: Darmstadt
Year of primary publication: 2014
Place of primary publication: Bristol
Publisher: IOP Publishing
Journal or Publication Title: Journal of Physics: Conference Series
Volume of the journal: 533
Issue Number: 1
Collation: 4 Seiten
DOI: 10.26083/tuprints-00020830
Corresponding Links:
Origin: Secondary publication DeepGreen

Six lifetimes have been determined in the 5/2⁺ [642] band from vi13/2 parentage in ¹⁶⁷Yb by means of Recoil distance Doppler-shift (RDDS) measurements carried out at the Cologne FN tandem. The deduced transition strengths and the level scheme are reasonably described by Particle plus triaxial rotor model (PTRM) calculations except for the behavior of the quadrupole collectivity in the two signatures of the 5/2⁺[642] band. In that band, the quadrupole collectivity of the favored signature is appreciably larger than this of the unfavored signature. The effect increases with increasing the spin. Naturally, the rigid PTRM cannot explain these features, but the structure of its wave functions suggests a possible solution. It is associated with the enhanced contribution of low-Ω orbitals from vi13/2 parentage in the favored signature compared to the unfavored one. This could selectively increase the deformation of the favored signature band members and give rise to a dynamic shape coexistence taking place between the two signatures which needs quantitative explanation by future theoretical work.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-208302
Additional Information:

XX International School on Nuclear Physics, Neutron Physics and Applications (Varna2013)

Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 26 Mar 2024 14:36
Last Modified: 05 Apr 2024 07:15
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20830
PPN: 516831046
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