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Investigations of nuclear chirality at iThemba LABS

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Progress in the studies of chirality in atomic nuclei at iThemba LABS is reviewed.New regions of chirality,around mass 80 and 190 have been discovered using the AFRODITE array,specifically in the nuclei 74As,78,80,82Br,81Kr,and 193,194,198Tl.Many phenomena have been observed,including multiple chiral bands in the same nucleus,the coexistence of octupole correlations and nuclear chirality,and the coexistence of pseudo spin and nuclear chirality.The best example of chiral degeneracy to date was found in 194Tl.The level scheme of 106Ag has been revisited and inter-preted in terms of two-and four-quasiparticle bands.Investigations using the particle-rotor model have shown that the fingerprints of chirality in the two-quasiparticle system only can occur in an idealised model descrip-tion.For systems with a higher number of quasiparticles,the calculations showed that nuclear chirality can persist.

chiralityhigh-spin statesparticle-rotor model

R.A.Bark、E.A.Lawrie、C.Liu、S.Y.Wang

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iThemba Laboratory for Accelerator Based Sciences,National Research Foundation,P.O.Box 722,Somerset-West 7129,South Africa

Department of Physics,University of the Western Cape,Private Bag X17,7535,Bellville,South Africa

Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment,Institute of Space Sciences,Shandong University,Weihai 264209,China

National Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaNational Research Foundation of South AfricaOutstanding Youth Fund of the Natural Science Foundation of Shandong Province国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金

652686558175248753577663280977886469074191446927919279293531103478109134116666ZR2020YQ07U2167202120751371207513812225504

2024

10.1007/s11467-023-1340-0

物理学前沿
高等教育出版社

物理学前沿

CSTPCD
影响因子：0.816
ISSN：2095-0462
年,卷(期)：2024.19(2)
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