Phys.Rev. C 105, 014301 (2022)

D.J.Hartley, F.G.Kondev, M.P.Carpenter, R.V.F.Janssens, M.A.Riley, K.Villafana, K.Auranen, A.D.Ayangeakaa, J.S.Baron, A.J.Boston, J.A.Clark, J.P.Greene, J.Heery, C.R.Hoffman, T.Lauritsen, J.Li, D.Little, E.S.Paul, G.Savard, D.Seweryniak, J.Simpson, S.Stolze, G.L.Wilson, J.Wu, S.Zhu

νi_13/2 structures in ¹⁵⁵Sm and ¹⁵⁹Gd: Supporting evidence of a Z=60 deformed subshell gap

NUCLEAR REACTIONS ¹⁵⁴Sm(¹⁶⁰Gd, n), E=1000 MeV from the ATLAS facility of the Argonne National Laboratory. Measured Eγ, Iγ, γγ-coin using Gammasphere array with 73 Compton-suppressed HPGe detectors. ¹⁵⁵Sm, ¹⁵⁹Gd; deduced high-spin levels, J, π, νi_13/2 bands, with the two signature partners, alignments and signature splitting. Discussed systematics of νi_13/2 structures in N=91, 93, 95, and 97 isotopes: ^153,155,157Sm, ^155,157,159Gd, ^157,159,161Dy, ¹⁵¹Ce, ^153,155Nd, ^161,163Er, ^163,165Yb.

doi: 10.1103/PhysRevC.105.014301