Phys.Rev. C 93, 014315 (2016)

J.Park, A.B.Garnsworthy, R.Krucken, C.Andreoiu, G.C.Ball, P.C.Bender, A.Chester, A.Close, P.Finlay, P.E.Garrett, J.Glister, G.Hackman, B.Hadinia, K.G.Leach, E.T.Rand, S.Sjue, K.Starosta, C.E.Svensson, E.Tardiff

Shape coexistence and evolution in ⁹⁸Sr

RADIOACTIVITY ⁹⁸Rb(β^-)[from U(p, F), E=500 MeV at TRIUMF-ISAC]; measured Eγ, Iγ, I(ce), βγ-, β(ce)-, γγ-, γ(ce)- and ce(ce)-coincidences using 8π array of 20 Compton-suppressed HPGe detectors for γ rays, ten plastic scintillators for β detection, and a set of five Si(Li) detectors (PACES) for conversion electrons. ⁹⁸Sr; deduced levels, absolute intensities of γ transitions, B(E0), B(E2). Comparison with two-state mixing model for interpretation of ρ²(E0) value, deduction of mixing of the two low-lying 0+ and 2+ states, and deformation parameters.

doi: 10.1103/PhysRevC.93.014315