Phys.Rev. C 89, 064309 (2014)

M.C.Drummond, D.O'Donnell, R.D.Page, D.T.Joss, L.Capponi, D.M.Cox, I.G.Darby, L.Donosa, F.Filmer, T.Grahn, P.T.Greenlees, K.Hauschild, A.Herzan, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.Lopez-Martens, A.K.Mistry, P.Nieminen, P.Peura, P.Rahkila, S.Rinta-Antila, P.Ruotsalainen, M.Sandzelius, J.Saren, B.Saygi, C.Scholey, J.Simpson, J.Sorri, A.Thornthwaite, J.Uusitalo

α decay of the πh_11/2 isomer in ¹⁶⁴Ir

RADIOACTIVITY ^164,165Ir(p), (α)[from ⁹²Mo(⁷⁸Kr, xnp), E=428, 435, 450 MeV]; ¹⁶³Os(α)[from ¹⁶⁴Ir p decay]; ¹⁶⁰Re(p)[from ¹⁶⁴Ir α decay]; measured E(p), I(p), E(α), I(α), production σ for ¹⁶⁴Ir, recoil-pα-, pα-, αα-correlated events, half-lives, α-decay branching ratio of ¹⁶⁴Ir decay using RITU separator and GREAT spectrometer at JYFL accelerator facility; deduced α- and proton-decay reduced widths. ¹⁶⁰Re; deduced level energy of the isomer. ^162,163Ir(α); estimated half-lives and α-particle branching ratios. ¹⁵⁵Lu, ¹⁵⁶Hf, ¹⁵⁸W, ^160,161W, ^161,162,163Re, ¹⁶⁴Os(α); observed α lines in particle spectrum. Comparison with previous experimental results. Systematics of α-decay widths and Q values for πh_11/2 states in Z=73-78, N=84-92 nuclei.

doi: 10.1103/PhysRevC.89.064309