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Evidence for wobbling excitation in 161Lu
Authors:P. Bringel  G. B. Hagemann  H. Hübel  A. Al-khatib  P. Bednarczyk  A. Bürger  D. Curien  G. Gangopadhyay  B. Herskind  D. R. Jensen  D. T. Joss  Th. Kröll  G. Lo Bianco  S. Lunardi  W. C. Ma  N. Nenoff  A. Neußer-Neffgen  C. M. Petrache  G. Schönwasser  J. Simpson  A. K. Singh  N. Singh  G. Sletten
Affiliation:(1) Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, Nußallee 14-16, D-53115 Bonn, Germany;(2) Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen, Denmark;(3) Institut de Recherche Subatomique, 23 Rue du Loess, F-67037 Strasbourg, France;(4) Department of Physics, University College of Science, 92 A.P.C. Road, 700009 Kolkata, India;(5) Daresbury Laboratory, CCLRC, Warrington WA4 4AD, UK;(6) Laboratori Nazionali di Legnaro, INFN, Viale dell"rsquo"Università 2, I-35020 Legnaro (PD), Italy;(7) Dipartimento di Fisica, Università di Camerino and INFN, I-62032 Camerino (PG), Italy;(8) Dipartimento di Fisica, Università di Padova and INFN, Via F. Marzolo 8, I-35131 Padova, Italy;(9) Department of Physics, Mississippi State University, MS 39762, USA;(10) Department of Physics, Panjab University, 160014 Chandigarh, India
Abstract:High-spin states in 161Lu were investigated using the EUROBALL spectrometer. A previously known triaxial superdeformed band has been extended to higher spins and a new band with similar characteristics has been discovered. Comparison to systematically occurring wobbling bands in Lu isotopes strongly suggests that these two bands represent the nw = 0 and 1 wobbling excitations in 161Lu.
Keywords:21.10.-k Properties of nuclei   nuclear energy levels  23.20.Lv   /content/t26452m5k0435347/xxlarge947.gif"   alt="  gamma"   align="  MIDDLE"   BORDER="  0"  > transitions and level energies  25.70.-z Low and intermediate energy heavy-ion reactions  27.70.+q 150  /content/t26452m5k0435347/xxlarge8804.gif"   alt="  le"   align="  MIDDLE"   BORDER="  0"  >A  /content/t26452m5k0435347/xxlarge8804.gif"   alt="  le"   align="  MIDDLE"   BORDER="  0"  >189
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