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Multiple chiral bands in $^{137}$Nd

Authors :
Petrache, C. M.
Lv, B. F.
Chen, Q. B.
Meng, J.
Astier, A.
Dupont, E.
Zheng, K. K.
Greenlees, P. T.
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.
Sandzelius, M.
Saren, J.
Scholey, C.
Sorri, J.
Stolze, S.
Uusitalo, J.
Cederwall, B.
Ertoprak, A.
Liu, H.
Guo, S.
Wang, J. G.
Zhou, X. H.
Kuti, I.
Timar, J.
Tucholski, A.
Srebrny, J.
Andreoiu, C.
Publication Year :
2020

Abstract

Two new bands have been identified in $^{137}$Nd from a high-statistics JUROGAM II gamma-ray spectroscopy experiment. Constrained density functional theory and particle rotor model calculations are used to assign configurations and investigate the band properties, which are well described and understood. It is demonstrated that these two new bands can be interpreted as chiral partners of previously known three-quasiparticle positive- and negative-parity bands. The newly observed chiral doublet bands in $^{137}$Nd represent an important support to the existence of multiple chiral bands in nuclei. The present results constitute the missing stone in the series of Nd nuclei showing multiple chiral bands, which becomes the most extended sequence of nuclei presenting multiple chiral bands in the Segr\'e chart.

Subjects

Subjects :
Nuclear Experiment
Nuclear Theory

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2008.07925
Document Type :
Working Paper
Full Text :
https://doi.org/10.1140/epja/s10050-020-00218-5