Evidence for wobbling excitation in 161Lu

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

doi:10.1140/epja/i2005-10005-7

2022 Impact factor 2.7

Hadrons and Nuclei

Eur. Phys. J. A (2005) 24: 167-172
https://doi.org/10.1140/epja/i2005-10005-7

Original Article

Evidence for wobbling excitation in ¹⁶¹Lu

P. Bringel¹^*, G. B. Hagemann², H. Hübel¹, A. Al-khatib¹, P. Bednarczyk³, A. Bürger¹, D. Curien³, G. Gangopadhyay⁴, B. Herskind², D. R. Jensen², D. T. Joss⁵, Th. Kröll⁶, G. Lo Bianco⁷, S. Lunardi⁸, W. C. Ma⁹, N. Nenoff¹, A. Neußer-Neffgen¹, C. M. Petrache⁷, G. Schönwasser¹, J. Simpson⁵, A. K. Singh¹, N. Singh¹⁰ and G. Sletten²

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’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

^* e-mail: bringel@iskp.uni-bonn.de

Received: 21 January 2005
Accepted: 2 March 2005
Published online: 21 March 2005

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 n _w = 0 and 1 wobbling excitations in ¹⁶¹Lu.

PACS: 21.10.-k Properties of nuclei; nuclear energy levels – / 23.20.Lv γ transitions and level energies – / 25.70.-z Low and intermediate energy heavy-ion reactions – / 27.70.+q 150≤A≤189 –

© Società Italiana di Fisica and Springer-Verlag, 2005