Interacting-boson-fermion-fermion model description of 140La83 and comparison with levels populated by beta decay and neutron capture

Meyer, R. A. and Marsh, K. V. and Seyfarth, H. and Brant, Slobodan and Bogdanović, M. and Paar, Vladimir (1990) Interacting-boson-fermion-fermion model description of 140La83 and comparison with levels populated by beta decay and neutron capture. Physical Review C, 41 (3). pp. 1172-1183. ISSN 0556-2813

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Abstract

We have studied the levels of La140 populated in the beta decay of 140Ba by gamma-ray spectroscopy, which included Compton-suppression gamma-ray spectra of 140Ba sources that were continuously eluted of the La140 daughter activity using ion-exchange chromatographic techniques. The study of the gamma-ray deexcitation of the low-energy levels was completed by a measurement of the low-energy gamma-ray spectrum following thermal neutron capture on 139La. Also, we have performed calculations using the interacting-boson-fermion-fermion model. When we compare the model predictions with the levels and their properties, which we have determined, we find better agreement than has been obtained using quasiparticle-vibrational models.

Item Type: Article
Date: March 1990
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (1990) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 20 May 2014 07:39
Last Modified: 20 May 2014 07:39
URI: http://digre.pmf.unizg.hr/id/eprint/1485

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