University of Oulu

Lv, B. F., Petrache, C. M., Budaca, R., Astier, A., Zheng, K. K., Greenlees, P., Badran, H., Calverley, T., Cox, D. M., Grahn, T., Hilton, J., Julin, R., Juutinen, S., Konki, J., Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., … Andreoiu, C. (2022). Experimental evidence for transverse wobbling bands in Nd 136. Physical Review C, 105(3), 034302.

Experimental evidence for transverse wobbling bands in 136Nd

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Author: Lv, B. F.1,2; Petrache, C. M.2; Budaca, R.3;
Organizations: 1Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
2Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
3“Horia Hulubei” National Institute for Physics and Nuclear Engineering, Str. Reactorului 30, RO-077125, POB-MG6 Bucharest-Mâgurele, Romania
4Department of Physics, University of Jyväskylä, Jyväskylä FIN-40014, Finland
5Department of Physics, University of Liverpool, The Oliver Lodge Laboratory, Liverpool L69 7ZE, United Kingdom
6Sodankylä Geophysical Observatory, University of Oulu, FIN-99600 Sodankylä, Finland
7KTH Department of Physics, S-10691 Stockholm, Sweden
8Institute for Nuclear Research (Atomki), Pf. 51, 4001 Debrecen, Hungary
9University of Warsaw, Heavy Ion Laboratory, Pasteura 5a, 02-093 Warsaw, Poland
10Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
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Language: English
Published: American Physical Society, 2022
Publish Date: 2022-08-03


The nature of two high-spin bands in 136 built on the two-quasiparticle configuration πh²11/2, predicted by the triaxial projected shell model as good candidates of transverse wobbling bands, are investigated experimentally. The mixing ratio of one ΔI=1 transition connecting the one-phonon and the zero-phonon wobbling bands is established from a high-statistics JuroGam II γ-ray spectroscopy experiment by using the combined angular correlation and linear polarization method. The resulting wobbling excitation energy and ratios of reduced electromagnetic transition probabilities are in good agreement with results of a new particle-rotor model which rigidly couples the total angular momentum of two quasiparticles to a triaxial core in an orthogonal geometry, confirming thus the transverse wobbling nature of the bands.

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Series: Physical review. C
ISSN: 2469-9985
ISSN-E: 2469-9993
ISSN-L: 2469-9985
Volume: 105
Article number: 034302
DOI: 10.1103/PhysRevC.105.034302
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: This work has been supported by the Special Research Assistant Project of the Chinese Academy of Sciences; by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB34000000); by the Academy of Finland under the Finnish Centre of Excellence Programme (2012-2017); by the EU 7th Framework Programme Project No. 262010 (ENSAR); by the French Ministry of Foreign Affairs and the Ministry of Higher Education and Research, France (PHC PROTEA Grant No. 42417SE); by the National Research, Development and Innovation Fund of Hungary (Project No. K128947), as well as by the European Regional Development Fund (Contract No. GINOP-2.3.3-15-2016-00034); by the Polish National Science Centre (NCN) Grant No. 2013/10/M/ST2/00427; by the Swedish Research Council under Grant No. 621-2014-5558. The use of germanium detectors from the GAMMAPOOL is acknowledged. I.K. was supported by National Research, Development and Innovation Office-NKFIH, Contract No. PD 124717. R.B. acknowledges the financial support of the Romanian Ministry of Research, Innovation and Digitalization, through Project No. PN-19-06-01-01/2019-2022.
Copyright information: © 2022 American Physical Society.