Level structure of 99Nb

Lhersonneau, G. and Suhonen, J. and Dendooven, P. and Honkanen, A. and Huhta, M. and Jones, P. and Julin, R. and Juutinen, S. and Oinonen, M. and Penttila, H. and Persson, J. R. and Perajarvi, K. and Savelius, A. and Wang, J. C. and Aysto, J. and Brant, Slobodan and Paar, Vladimir and Vretenar, Dario (1998) Level structure of 99Nb. Physical Review C, 57 (6). pp. 2974-2990. ISSN 0556-2813

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Abstract

The β decay of 97Sr to 97Y has been investigated using ion-guide on-line mass separation and a 10 Ge-detector array to record γ−γ coincidences to a detection limit well below that of former studies. Similarities are found in the β-decay patterns of 99Zr and of its isotone 97Sr and also in the γ-ray decay rates and branchings of the corresponding levels in their respective daughters 99Nb and 97Y. This indicates a persisting influence of the d5/2 neutron shell closure for 99Nb. The level structure of 99Nb and the β-feeding pattern are discussed in the frame of the interacting boson-fermion plus broken pair model and the microscopic quasiparticle phonon model.

Item Type: Article
Keywords: beta decay, nuclear stucture, 99Nb, interacting boson-fermion plus broken pair model
Date: June 1998
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (1998) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119211
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 14 May 2014 16:41
Last Modified: 14 May 2014 16:41
URI: http://digre.pmf.unizg.hr/id/eprint/1315

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