Mu, LWang, ShouyuKhumalo, N. A.2022-09-072022-09-072022Mu, 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.2022.1370061873-2445https://doi.org/10.1016/j.physletb.2022.137006http://hdl.handle.net/10566/7826Two 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.enAstrophysicsChiral doublet bandsPseudospin doubletNuclear PhysicsArticle