Phys.Rev. C 100, 014305 (2019)

J.Hilton, J.Uusitalo, J.Saren, R.D.Page, D.T.Joss, M.A.M.AlAqeel, H.Badran, A.D.Briscoe, T.Calverley, D.M.Cox, T.Grahn, A.Gredley, P.T.Greenlees, R.Harding, A.Herzan, E.Higgins, R.Julin, S.Juutinen, J.Konki, M.Labiche, M.Leino, M.C.Lewis, J.Ojala, J.Pakarinen, P.Papadakis, J.Partanen, P.Rahkila, P.Ruotsalainen, M.Sandzelius, C.Scholey, J.Sorri, L.Sottili, S.Stolze, F.Wearing

α-spectroscopy studies of the new nuclides ¹⁶⁵Pt and ¹⁷⁰Hg

RADIOACTIVITY ¹⁶⁵Pt(α)[new nuclide from ⁹²Mo(⁷⁸Kr, 5n), E=418 MeV]; ¹⁷⁰Hg(α)[new nuclide from ⁹⁶Ru(⁷⁸Kr, 4n), E=390, 418 MeV]; ¹⁶⁷Pt(α)[from ⁹⁶Ru(⁷⁸Kr, 3nα), E=390, 418 MeV]; ¹⁶⁶Pt(α)[from ⁹⁶Ru(⁷⁸Kr, 4n), E=390, 418 MeV]; ^161,162,163Os, ^158,159W, ¹⁵⁷Ta, ^154,155Hf(α)[from α-decay chains of ¹⁶⁵Pt, ¹⁶⁷Pt and ¹⁷⁰Hg]; measured Eα, Iα, α-α correlated plots, half-lives of ground states, production cross sections of parent nuclei using the MARA spectrometer with multiwire proportional counter for recoil identification, and double-sided silicon strip detector for α detection at the University of Jyvaskyla accelerator facility; deduced Q(α), reduced α-decay widths. ¹⁶⁵Pt, ¹⁷⁰Hg(2p); no evidence found for this decay mode in this experiment, although, Q(2p) is positive for both the nuclides. Systematics of Qα and Q(2p) values for A=156-180, and α-decay reduced widths for N=83-102, for W, Os, Pt and Hg isotopes.

doi: 10.1103/PhysRevC.100.014305