Phys.Rev. C 103, 024310 (2021)

F.H.Garcia, C.Andreoiu, G.C.Ball, N.Bernier, H.Bidaman, V.Bildstein, M.Bowry, D.S.Cross, M.R.Dunlop, R.Dunlop, A.B.Garnsworthy, P.E.Garrett, J.Henderson, J.Measures, B.Olaizola, K.Ortner, J.Park, C.M.Petrache, J.L.Pore, K.Raymond, J.K.Smith, D.Southall, C.E.Svensson, M.Ticu, J.Turko, K.Whitmore, T.Zidar, for the GRIFFIN Collaboration

Spectroscopic studies of neutron-rich ¹²⁹In and its β-decay daughter, ¹²⁹Sn, using the GRIFFIN spectrometer

RADIOACTIVITY ^129,129mIn(β^-)[from UC_x(p, F), E=480 MeV, followed by ionization and extraction of relevant isotopes using the Ion-Guide Laser Ion Source (IGLIS) and mass separation of ions of interest using high-resolution mass spectrometer at ISAC-TRIUMF]; measured Eγ, Iγ, β, βγ- and γγ-coin, half-lives of decays of ¹²⁹In g.s. and three isomers of ¹²⁹In using GRIFFIN array for γ detection, and SCEPTAR for β particles. ¹²⁹Sn; deduced levels, J, π, γ-branching ratios, β feedings, logft values from the decays of ¹²⁹In g.s., and three isomeric states of ¹²⁹In. ^129mIn; deduced β branching for the decay of (29/2+), 1911-keV isomer. Comparison with previous results from the ENSDF database.

doi: 10.1103/PhysRevC.103.024310