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

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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.

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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