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Interacting-boson-fermion-fermion model description of La-83140 and comparison with levels populated by beta decay and neutron capture

Authors
  • Meyer, R.A.
  • Marsh, K.V.
  • Seyfarth, H.
  • Brant, S.
  • Bogdanovic, M.
  • Paar, V.
Publication Date
Mar 01, 1990
Identifiers
DOI: 10.1103/PhysRevC.41.1172
OAI: oai:inspirehep.net:312951
Source
INSPIRE-HEP
License
Unknown
External links

Abstract

We have studied the levels of La140 populated in the beta decay of Ba140 by gamma-ray spectroscopy, which included Compton-suppression gamma-ray spectra of Ba140 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 La139. 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.

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