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Multiple chiral bands in $^{137}$Nd

Authors :
Bo Cederwall
Panu Rahkila
Tuomas Grahn
J. Hilton
Daniel Cox
Juha Uusitalo
Paul Greenlees
Song Guo
Corina Andreoiu
István Kuti
A. Tucholski
Jie Meng
S. Stolze
Rauno Julin
Xiaojuan Zhou
C. M. Petrache
Jie Wang
K. K. Zheng
Mikael Sandzelius
Q. B. Chen
H. Badran
A. Ertoprak
Joonas Konki
Philippos Papadakis
J. Srebrny
Jan Sarén
Jari Partanen
Janne Pakarinen
T. Calverley
A. Astier
Panu Ruotsalainen
E. Dupont
B. F. Lv
Sakari Juutinen
Juha Sorri
Huan Liu
Catherine Scholey
János Timár
Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM)
Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Source :
Eur.Phys.J.A, Eur.Phys.J.A, 2020, 56 (8), pp.208. ⟨10.1140/epja/s10050-020-00218-5⟩
Publication Year :
2020
Publisher :
arXiv, 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 odd–even and even-even nuclei presenting multiple chiral bands in the Segré chart. 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.

Details

Database :
OpenAIRE
Journal :
Eur.Phys.J.A, Eur.Phys.J.A, 2020, 56 (8), pp.208. ⟨10.1140/epja/s10050-020-00218-5⟩
Accession number :
edsair.doi.dedup.....a3da33ad7648862bb81ce458a491229e
Full Text :
https://doi.org/10.48550/arxiv.2008.07925