First observation of the coexistence of multiple chiral doublet bands and pseudospin doublet bands in the A ≈ 80 mass region
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Date
2022
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
Two nearly degenerate positive-parity bands with the π g2
9/2 ⊗ ν g−1
9/2 configuration and three nearly
degenerate negative-parity bands with the π g9/2(p3/2, f5/2) ⊗ ν g−1
9/2 configuration have been identified
in 81Kr. They are interpreted as chiral doublet bands and pseudospin-chiral triplet bands, which is
supported by the constrained covariant density functional theory and the multiparticle plus rotor
model calculations. The present work reports two new chiral configurations π g2
9/2 ⊗ ν g−1
9/2 and
π g9/2(p3/2, f5/2) ⊗ ν g−1
9/2, and the first example of pseudospin-chiral triplet bands involving the
π (p3/2, f5/2) pseudospin doublet.
Description
Keywords
Astrophysics, Chiral doublet bands, Pseudospin doublet, Nuclear Physics
Citation
Mu, L. et al. (2022). First observation of the coexistence of multiple chiral doublet bands and pseudospin doublet bands in the A ≈ 80 mass region. Physics Letters B, 827, 137006. https://doi.org/10.1016/j.physletb.2022.137006