Phys.Rev. C 97, 024301 (2018)

K.Auranen, J.Uusitalo, S.Juutinen, H.Badran, F.Defranchi Bisso, D.Cox, T.Grahn, P.T.Greenlees, A.Herzan, U.Jakobsson, R.Julin, J.Konki, M.Leino, A.Lightfoot, M.J.Mallaburn, O.Neuvonen, J.Pakarinen, P.Papadakis, J.Partanen, P.Rahkila, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, Y.K.Wang

Prompt and delayed spectroscopy of ²⁰³At: Observation of a shears band a 29/2⁺ isomeric state

NUCLEAR REACTIONS ¹⁵⁹Tb(⁴⁸Ca, 4n), E=198 MeV; measured Eγ, Iγ, γ(θ), E(x ray), I(x ray), Eα, γγ- and (ce)γ-coin, recoil-gated γ singles, recoil-isomer decay tagged γ singles, prompt and delayed γ-ray spectra, half-lives of isomers, K/(L+M+) ratios using RITU separator, GREAT spectrometer, JUROGAM II array of 24 clover and 15 tapered Compton-suppressed Ge detectors at the K-130 cyclotron Accelerator Laboratory at the University of Jyvaskyla. ²⁰³At; deduced high-spin levels, J, π, multipolarities, B(E1), B(E2), B(M2), magnetic-dipole shears band, configurations. Comparison with TAC-CDFT calculations for the shears band. Energy systematics of N=110-126 odd-A At isotopes.

doi: 10.1103/PhysRevC.97.024301