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Title: Decay out of the highly-deformed bands in the A=130 mass region and experimental {delta}{sub {nu}} for Nd nuclei

Abstract

A review of the results on the decay out of highly-deformed bands in the A=130 mass region is presented, including new experimental information on the decay out of two highly-deformed bands in {sup 132}Nd and {sup 134}Nd. The previously observed E2 linking transitions are explained by the crossing with observed nonyrast bands of normal deformation. Large interaction matrix elements and mixing amplitudes between the interacting highly-deformed and normal-deformed bands are deduced. The large normal-deformed admixture into the lowest observed highly-deformed states explains why the decay out occurs at a certain spin along the band and shows that the barrier between the highly-deformed and normal-deformed minima disappears at low spins. Results on the decay out of the highly-deformed band of {sup 136}Nd are reported and the extraction of {delta}{sub {nu}} for the highly-deformed Nd nuclei is discussed.

Authors:
; ; ; ; ; ; ; ;  [1]; ; ; ; ; ; ; ;  [2]; ; ;  [3]
  1. Dipartimento di Fisica and INFN, Sezione di Padova, Padova (Italy)
  2. INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy)
  3. Institut de Physique Nucleaires de Lyon, IN2P3/CNRS, Universite C. Bernard, Lyon (France) (and others)
Publication Date:
OSTI Identifier:
21208238
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 481; Journal Issue: 1; Conference: Nuclear structure 98 conference, Gatlinburg, TN (United States), 10-15 Aug 1998; Other Information: DOI: 10.1063/1.59521; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DEFORMED NUCLEI; HIGH SPIN STATES; MATRIX ELEMENTS; NEODYMIUM 132; NEODYMIUM 134; NEODYMIUM 136; NUCLEAR DECAY; NUCLEAR DEFORMATION; NUCLEAR STRUCTURE; ROTATIONAL STATES; SPIN

Citation Formats

Petrache, C. M., Bazzacco, D., Falconi, G., Lunardi, S., Maglione, E., Menegazzo, R., Rossi Alvarez, C., Venturelli, R., Viesti, G., De Angelis, G., De Poli, M., Fahlander, C., Farnea, E., Gadea, A., Maron, G., Napoli, D. R., Podolyak, Zs., Perries, S., Astier, A., and Ducroux, L. Decay out of the highly-deformed bands in the A=130 mass region and experimental {delta}{sub {nu}} for Nd nuclei. United States: N. p., 1999. Web. doi:10.1063/1.59521.
Petrache, C. M., Bazzacco, D., Falconi, G., Lunardi, S., Maglione, E., Menegazzo, R., Rossi Alvarez, C., Venturelli, R., Viesti, G., De Angelis, G., De Poli, M., Fahlander, C., Farnea, E., Gadea, A., Maron, G., Napoli, D. R., Podolyak, Zs., Perries, S., Astier, A., & Ducroux, L. Decay out of the highly-deformed bands in the A=130 mass region and experimental {delta}{sub {nu}} for Nd nuclei. United States. doi:10.1063/1.59521.
Petrache, C. M., Bazzacco, D., Falconi, G., Lunardi, S., Maglione, E., Menegazzo, R., Rossi Alvarez, C., Venturelli, R., Viesti, G., De Angelis, G., De Poli, M., Fahlander, C., Farnea, E., Gadea, A., Maron, G., Napoli, D. R., Podolyak, Zs., Perries, S., Astier, A., and Ducroux, L. Thu . "Decay out of the highly-deformed bands in the A=130 mass region and experimental {delta}{sub {nu}} for Nd nuclei". United States. doi:10.1063/1.59521.
@article{osti_21208238,
title = {Decay out of the highly-deformed bands in the A=130 mass region and experimental {delta}{sub {nu}} for Nd nuclei},
author = {Petrache, C. M. and Bazzacco, D. and Falconi, G. and Lunardi, S. and Maglione, E. and Menegazzo, R. and Rossi Alvarez, C. and Venturelli, R. and Viesti, G. and De Angelis, G. and De Poli, M. and Fahlander, C. and Farnea, E. and Gadea, A. and Maron, G. and Napoli, D. R. and Podolyak, Zs. and Perries, S. and Astier, A. and Ducroux, L.},
abstractNote = {A review of the results on the decay out of highly-deformed bands in the A=130 mass region is presented, including new experimental information on the decay out of two highly-deformed bands in {sup 132}Nd and {sup 134}Nd. The previously observed E2 linking transitions are explained by the crossing with observed nonyrast bands of normal deformation. Large interaction matrix elements and mixing amplitudes between the interacting highly-deformed and normal-deformed bands are deduced. The large normal-deformed admixture into the lowest observed highly-deformed states explains why the decay out occurs at a certain spin along the band and shows that the barrier between the highly-deformed and normal-deformed minima disappears at low spins. Results on the decay out of the highly-deformed band of {sup 136}Nd are reported and the extraction of {delta}{sub {nu}} for the highly-deformed Nd nuclei is discussed.},
doi = {10.1063/1.59521},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 481,
place = {United States},
year = {1999},
month = {9}
}