Phys.Rev. C 100, 024301 (2019)

B.Olaizola, A.B.Garnsworthy, F.A.Ali, C.Andreoiu, G.C.Ball, N.Bernier, H.Bidaman, V.Bildstein, M.Bowry, R.Caballero-Folch, I.Dillmann, G.Hackman, P.E.Garrett, B.Jigmeddorj, A.I.Kilic, A.D.MacLean, H.P.Patel, Y.Saito, J.Smallcombe, C.E.Svensson, J.Turko, K.Whitmore, T.Zidar

Shape coexistence in the neutron-deficient lead region: A systematic study of lifetimes in the even-even ^188-200Hg with the GRIFFIN spectrometer at TRIUMF

RADIOACTIVITY ^{188,190,192,194,196,198,200}Tl(EC), (β⁺)[from U(p, X), E=500 MeV from TRIUMF cyclotron, using UC_x target and TRIUMF Resonant Ionization Laser Ion Source]; measured Eγ, ce, γγ-coin, level half-lives by γγ(t) fast timing techniques using GRIFFIN spectrometer with 15 HPGe clovers, LaBr₃(Ce), and Si(Li) detectors. ^{188,190,192,194,196,198,200}Hg; deduced levels, J, π, B(E2), B(M1), B(E1), ρ²(E0) for 0+ to 0+ E0 transitions. Comparison with available previous measurements, and with IBM-2 and IBM-CM calculations. Discussed B(E2)(first 4+ to first 2+)/B(E2)(first 2+ to g.s.) ratios.

doi: 10.1103/PhysRevC.100.024301