Longitudinal Wobbling Motion in Au187

The rare phenomenon of nuclear wobbling motion has been investigated in the nucleus Au187. A longitudinal wobbling-bands pair has been identified and clearly distinguished from the associated signature-partner band on the basis of angular distribution measurements. Theoretical calculations in the fr...

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Bibliographic Details
Published in:Physical review letters 2020-02, Vol.124 (5), p.1
Main Authors: Sensharma, N, Garg, U, Chen, Q B, Frauendorf, S, Burdette, D P, Cozzi, J L, Howard, K B, Zhu, S, Carpenter, M P, Copp, P, Kondev, F G, Lauritsen, T, Li, J, Seweryniak, D, Wu, J, Ayangeakaa, A D, Hartley, D J, F Janssens, R V, ney, A M, Walters, W B, Ghugre, S Ghugre, Palit, R
Format: Article
Language:English
Subjects:
150 ≤ A ≤ 189
Angular distribution
collective levels
collective models
nuclear density functional theory
NUCLEAR PHYSICS AND RADIATION PHYSICS
nuclear structure & decays
rotation
triaxial nuclei
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Summary:The rare phenomenon of nuclear wobbling motion has been investigated in the nucleus Au187. A longitudinal wobbling-bands pair has been identified and clearly distinguished from the associated signature-partner band on the basis of angular distribution measurements. Theoretical calculations in the framework of the particle rotor model are found to agree well with the experimental observations. This is the first experimental evidence for longitudinal wobbling bands where the expected signature partner band has also been identified, and establishes this exotic collective mode as a general phenomenon over the nuclear chart.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.124.052501