Phys.Rev. C 95, 054308 (2017)

R.T.Wood, P.M.Walker, G.J.Lane, R.J.Carroll, D.M.Cullen, G.D.Dracoulis, S.S.Hota, T.Kibedi, N.Palalani, Zs.Podolyak, M.W.Reed, K.Schiffl, A.M.Wright

Three-quasiparticle isomer in ¹⁷³Ta and the excitation energy dependence of K-forbidden transition rates

NUCLEAR REACTIONS ¹⁶⁸Er(¹⁰B, 5n), E=68 MeV beam from ANU 14UD tandem accelerator; measured Eγ, Iγ, γγ-coin, half-lives of isomers by γγ(t) using CAESAR array, and pulsed-beam γ-ray spectroscopy techniques. ¹⁷³Ta; deduced high-spin levels, J, π, bands, 3-qp isomers, reduced hindrance f_ν of K-forbidden transitions, configurations. Systematics of reduced hindrances for transitions from isomers in ^{173,175,177,181,185}Ta, ^179,181,183W and ¹⁸¹Os.

doi: 10.1103/PhysRevC.95.054308