Phys.Rev. C 101, 064321 (2020)

A.E.Barzakh, D.Atanasov, A.N.Andreyev, M.Al Monthery, N.A.Althubiti, B.Andel, S.Antalic, K.Blaum, T.E.Cocolios, J.G.Cubiss, P.Van Duppen, T.Day Goodacre, A.de Roubin, G.J.Farooq-Smith, D.V.Fedorov, V.N.Fedosseev, D.A.Fink, L.P.Gaffney, L.Ghys, R.D.Harding, M.Huyse, N.Imai, S.Kreim, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, Y.Martinez Palenzuela, P.L.Molkanov, D.Neidherr, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, M.D.Seliverstov, S.Sels, C.Van Beveren, E.Verstraelen, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

Shape coexistence in ¹⁸⁷Au studied by laser spectroscopy

NUCLEAR MOMENTS ^187,187mAu; measured hyperfine-structure (hfs) spectrum, time-of-flight of the 9/2- isomer of ¹⁸⁷Au using ISOLTRAP's multireflection time-of-flight mass separator (MR-ToF-MS) and resonance-ionization laser spectroscopy technique at CERN-ISOLDE. ^187mAu; deduced hfs parameters, isotope shift, mean-square charge radius, magnetic moment, shape coexistence, Nilsson configuration. ^187,187mAu produced in U(p, F), E=1.4 GeV reaction, and separated in mass-to-charge ratio using the General Purpose Separator (GPS) of ISOLDE. Systematics of changes in mean-square charge radii for A=183-199 Au isotopes. Systematics of magnetic moments of the 9/2-, πh_9/2 states in Bi, Th, Au and Fr isotopes.

doi: 10.1103/PhysRevC.101.064321