Journal Article

FZJ-2021-00156

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Static quadrupole moments of nuclear chiral doublet bands

Chen, Q. B. (Corresponding author) ; Kaiser, N. ; Meißner, U.-G.FZJ* ; Meng, J.

2020
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/26723  doi:10.1016/j.physletb.2020.135568

Abstract: The static quadrupole moments (SQMs) of nuclear chiral doublet bands are investigated for the first time taking the particle-hole configuration with triaxial deformation parameters in the range as examples. The behavior of the SQM as a function of spin I is illustrated and analyzed. It is found that in the region of chiral vibrations the SQMs of doublet bands are strongly varying with I, whereas in the region of static chirality the SQMs of doublet bands are almost constant. Hence, the measurement of SQMs provides a new criterion for distinguishing the modes of nuclear chirality. Moreover, in the high-spin region the SQMs can be approximated by an analytic formula with a proportionality to for both doublet bands. This provides a way to extract experimentally the triaxial deformation parameter γ for chiral bands from the measured SQMs.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)

Appears in the scientific report 2020

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