Evidence for the Wobbling Mode in Nuclei
S. W. ØdegårdDepartment of Physics, University of Oslo, PB 1048 Blindern, N-0316 Oslo, NorwayG.B. HagemannDavid R. JensenM. BergströmB. HerskindG. SlettenS. TörmänenJ. N. WilsonP.O. TjømDepartment of Physics, University of Oslo, PB 1048 Blindern, N-0316 Oslo, NorwayI. HamamotoDepartment of Mathematical Physics, LTH, University of Lund, Lund, SwedenK. SpohrDepartment of Electronic Engineering and Physics, University of Paisley, ScotlandH. HübelInstitut für Strahlen- und Kernphysik, University of Bonn, Nussallee 14-16, D-53115 Bonn, GermanyA. GörgenInstitut für Strahlen- und Kernphysik, University of Bonn, Nussallee 14-16, D-53115 Bonn, GermanyG. SchönwaßerInstitut für Strahlen- und Kernphysik, University of Bonn, Nussallee 14-16, D-53115 Bonn, GermanyA. BraccoDipartemento di Fisica and INFN, Sezione di Milano, Milano, ItalyS. LeoniDipartemento di Fisica and INFN, Sezione di Milano, Milano, ItalyA. MajNiewodniczanski Institute of Nuclear Physics, Krakow, PolandC. M. PetracheDipartemento di Fisica and INFN, Sezione di Padova, Padova, ItalyP. BednarczykIReS, 23 rue du Loess, BP 28 F-67037, Strasbourg, FranceD. CurienIReS, 23 rue du Loess, BP 28 F-67037, Strasbourg, France
2001en
ABI
Annotatsiya
The nucleus (163)Lu has been populated through the fusion-evaporation reaction (139)La((29)Si,5n)(163)Lu with a beam energy of 152 MeV. The electromagnetic properties of several connecting transitions between two presumably triaxial, strongly deformed (TSD) bands have been studied. Evidence is presented for the assignment of the excited TSD band as a wobbling mode built on the yrast TSD band, based on comparisons to new calculations in which an aligned particle is coupled to a strongly deformed triaxial rotor. The wobbling mode is uniquely related to triaxiality in nuclei.
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