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          Institute: MPI für Kernphysik     Collection: Nuclear Physics and Nuclear Probes     Display Documents



  history
ID: 50957.0, MPI für Kernphysik / Nuclear Physics and Nuclear Probes
Excited bands and signature dependent electromagnetic decay properties in neutron-rich 159,161,163Dy
Authors:Jungclaus, A.; Binder, B.; Dietrich, A.; Härtlein, T.; Bauer, H.; Gund, C.; Pansegrau, D.; Schwalm, D.; Bazzacco, D.; Farnea, E.; Lunardi, S.; Rossi-Alvarez, C.; Ur, C.; de Angelis, G.; Gadea, A.; Napoli, D.R.; Zhou, X.R.; Sun, Y.
Language:English
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Physical Review C
Journal Abbrev.:Phys. Rev. C
Volume:67
Issue / Number:3
Sequence Number of Article:034302
Copyright:copyrigh©2003 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:High-spin states of the neutron-rich odd nuclei 159,161,163Dy have been studied using the incomplete fusion reactions 158,160Gd(7Li,(p,d,t)xn). In 159Dy, the band crossing in the 11/2-[505] band has been observed for the first time. Moreover, 11 E1 transitions connecting both signatures of the 3/2-[521] band to the 5/2+[642] band have been observed in this nucleus; the deduced B(E1)/B(E2) ratios as well as the B(M1)/B(E2) ratios for transitions within the 3/2-[521] band show a pronounced signature dependence. In 161Dy and 163Dy, rotational bands have been extended to significantly higher spin values. In 161Dy, the sequences built on the neutron 5/2-[523] and 3/2-[521] states have been followed up to spin 49/2- and 33/2-, respectively, and in both cases upbends have been observed around 0.26 MeV. In addition, a new band most probably built on the 11/2-[505] single-particle state has been identified in this isotope. In 163Dy, both the 5/2-[523] ground state band and the structure built on the 5/2+[642] neutron orbit have been extended up to the 45/2- and 49/2+ states, respectively. However, no band crossing has been observed in this nucleus. The properties of the observed bands in 159,161,163Dy are discussed and compared to calculations performed within the projected shell model.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group D. Schwalm/Nuclear Gamma-Ray Spectroscopy (H. Scheit)
External Affiliations:Departamento de Fisica Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
Dipartimento di Fisica dell' Universitá and INFN, Sezione di Padova, I-35131 Padova, Italy
INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
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