Evidence for the wobbling mode in nuclei

S.W. Ødegård, G.B. Hagemann, D.R. Jensen, M. Bergström, B. Herskind, G. Sletten, S. Tormänen, J.N. Wilson, P.O. Tjøm, I. Hamamoto, K.M. Spohr, H. Hübel, A. Görgen, G. Schönwasser, A. Bracco, S. Leoni, A. Maj, C.M. Petrache, P. Bednarczyk, D. Curien

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Abstract

The nucleus 163Lu has been populated through the fusion-evaporation reaction 139La(29Si,5n)163Lu 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.
Original languageEnglish
Article number5866
JournalPhysical Review Letters
Volume86
Issue number26
DOIs
Publication statusPublished - 25 Jun 2001

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Ødegård, S. W., Hagemann, G. B., Jensen, D. R., Bergström, M., Herskind, B., Sletten, G., Tormänen, S., Wilson, J. N., Tjøm, P. O., Hamamoto, I., Spohr, K. M., Hübel, H., Görgen, A., Schönwasser, G., Bracco, A., Leoni, S., Maj, A., Petrache, C. M., Bednarczyk, P., & Curien, D. (2001). Evidence for the wobbling mode in nuclei. Physical Review Letters, 86(26), [5866]. https://doi.org/10.1103/PhysRevLett.86.5866