Phys.Rev. C 88, 044313 (2013)

J.Rissanen, R.M.Clark, K.E.Gregorich, J.M.Gates, C.M.Campbell, H.L.Crawford, M.Cromaz, N.E.Esker, P.Fallon, U.Forsberg, O.Gothe, I.-Y.Lee, H.L.Liu, A.O.Machiavelli, P.Mudder, H.Nitsche, G.Pang, A.Rice, D.Rudolph, M.A.Stoyer, A.Wiens, F.R.Xu

Decay of the high-K isomeric state to a rotational band in ²⁵⁷Rf

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁰Ti, n), (⁵⁰Ti, 2n), E=238, 243, 258 MeV; measured time-of-flight for Rf implantation events, recoil-electron, recoil-electron-α, recoil-electron-fission events, Eγ, Iγ, ce, Eα, γ(recoil electron)-, γ(recoil electron)-fission coin, delayed γ and ce, half-lives of ground state and isomers at LBNL cyclotron facility. ²⁵⁷Rf; deduced high-spin levels, J, π, multipolarity, band, high-K isomer, [g_K-g_R]/Q₀ ratios, configurations of 1-qp and 3-qp states, hindrance factor. ²⁵⁶Rf; deduced levels, K-isomers, J, π, multipolarity, configurations.

RADIOACTIVITY ²⁵⁷Rf, ²⁵³No(α)[²⁵⁷Rf from ²⁰⁸Pb(⁵⁰Ti, n), E=238, 243, 258 MeV]; measured Eα. ²⁴⁹Fm, ²⁵³No; deduced levels.

doi: 10.1103/PhysRevC.88.044313