Some recent experimental results related to nuclear chirality

20th International School on Nuclear Physics, Neutron Physics and Applications

Timár, J.^1 ; Kuti, I.^1 ; Sohler, D.^1 ; Starosta, K.^2 ; Koike, T.^3 ; Paul, E.S.^4

Institute for Nuclear Research, Hungarian Academy of Sciences, Debrecen

H-4026, Hungary^1

Department of Chemistry, Simon Fraser University, Burnaby

BC

1S6, Canada^2

Graduate School of Science, Tohoku University, Sendai

980-8578, Japan^3

Oliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool

L69 7ZE, United Kingdom^4

关键词: Chiral bands;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/533/1/012042/pdf
DOI  :  10.1088/1742-6596/533/1/012042

来源: IOP

【 摘 要 】

Detailed band structures of three chiral-candidate nuclei,134Pr,132La and103Rh have been studied. The aim of the study was twofold. First, to try to explore the reasons behind the contradiction between the theoretically predicted chirality in these nuclei and the recently observed fingerprints that suggest non-chiral interpretation for the previous chiral candidate band doublets. Second, to search for multiple chiral bands of different types in these nuclei. In134Pr a new πh11/2vh11/2band has been observed besides the previously known chiral-candidate πh11/2vh11/2doublet. This new band and the yrare πh11/2vh11/2band show the expected features of a chiral doublet structure. This fact combined with the observed similarity between the band structures of134Pr and132La suggests that chirality might exist in these nuclei. The detailed study of the103Rh band structure resulted in the observation of two new chiral-doublet looking structures besides the previously known one. This is indicative of possible existence of multiple chiral doublet structure in this nucleus.