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

Scientific paper - Original scientific paper

• Author: R. A. Meyer
• Author: K. V. Marsh
• Author: H. Seyfarth
• Author: Slobodan Brant
• Author: M. Bogdanović
• Author: Vladimir Paar
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

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.

• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review C - Nuclear Physics
• Numbering: vol. 41, no. 3, pp. 1172-1183
• p-ISSN: 0556-2813
• e-ISSN: 1089-490X
• DOI: https://doi.org/10.1103/PhysRevC.41.1172
• URN:NBN: urn:nbn:hr:217:826228
• Publication: 1990
• Document URL: http://link.aps.org/doi/10.1103/PhysRevC.41.1172
• Type of resource: Text
• Access conditions: Open access
• Public note: Copyright (1990) by the American Physical Society.
• Created on: 2019-09-27 11:14:49