Phys.Rev. C 103, 044307 (2021)

S.A.Gillespie, A.Stott, A.N.Andreyev, J.G.Cubiss, M.Al Monthery, C.J.Barton, S.Antalic, K.Auranen, H.Badran, D.Cox, T.Grahn, P.T.Greenlees, A.Herzan, E.Higgins, R.Julin, S.Juutinen, J.Klimo, J.Konki, M.Leino, M.Mallaburn, J.Pakarinen, P.Papadakis, J.Partanen, P.M.Prajapati, P.Rahkila, M.Sandzelius, C.Scholey, J.Sorri, S.Stolze, R.Urban, J.Uusitalo, M.Venhart, F.Wearing

Identification of sub-μ isomeric states in the odd-odd nucleus ¹⁷⁸Au

RADIOACTIVITY ¹⁷⁸Au(IT), (α)[from ⁹²Mo(⁸⁸Sr, np)¹⁷⁸Au, E=381 MeV, followed by separation of fragments using RITU separator and implanted into a double sided silicon detectors (DSSD), placed side by side of the GREAT spectrometer at the University of Jyvaskyla]; measured Eγ, Iγ, Eα, Iα, (recoil)γ- and γγ-coin, half-lives of two sub-microsec isomers, total conversion coefficients. ¹⁷⁸Au; deduced levels, J, π, isomers, α branching ratios, multipolarities, E2/M1 mixing ratios, B(E1), B(E2), B(M1). ^{174,175,176,177,178}Pt, ^177,179Au, ^178,179Hg(α); measured Eα within 7 s of implantation of evaporation residues in the DSSD.

doi: 10.1103/PhysRevC.103.044307