| Affiliation: | (1) The Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark;(2) Department of Mathematical Physics, LTH, University of Lund, Lund, Sweden;(3) Department of Physics, University of Oslo, PB 1048 Blindern, N-0316 Oslo, Norway;(4) Department of Electronic Engineering and Physics, University of Paisley, UK;(5) Helmholtz-Institut für Strahlen- und Kernphysik, University of Bonn, Nußallee 14-16, D-53115 Bonn, Germany;(6) Mississippi State University, MS 39762, Mississippi State, USA;(7) Dipartimento di Fisica and INFN, Sezione di Milano, Milano, Italy;(8) Niewodniczanski Insitute of Nuclear Physics, Krakow, Poland;(9) Dipartimento di Fisica and INFN, Sezione di Padova, Padova, Italy;(10) Dipartimento di Matematica e Fisica, Universitá di Camerino, Camerino, Italy;(11) IReS, 23 rue du Loess, BP28, F-67037 Strasbourg, France; |
| Abstract: | The nucleus 166Hf has been populated by the reaction 96Zr(74Ge,4n) using a beam energy of 310MeV. γ-rays were detected with the EUROBALL III detector array. Fourteen new normal-deformed rotational bands, of which six form coupled pairs, have been observed in 166Hf. Four previously known bands have been extended to considerably higher spin, and configurations of the new bands are proposed. Two different bands have been assigned configurations involving the same orbitals at high spin. The two coupling schemes, deformation and rotation alignment, are discussed in connection with this new observation, which calls for a formulation of co-existing coupling schemes in six-quasiparticle structures involving the same orbitals at high spin. |
