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Lifetimes of excited states in 116 Xe were measured using the recoil-distance Doppler-shift technique. Excited 116 Xe nuclei were populated in the fusion-evaporation reaction 102 Pd( 16 O,2n) 116 Xe. Lifetimes of the 2 1 + and 4 1 + states were evaluated using the differential decay-curve method with γ - γ -coincidence data as well as lifetimes of the 6 1 + and 7 1 - states using simulations of spectra considering Doppler-shift attenuation effects. [ABSTRACT FROM AUTHOR]

A γ - γ coincidence Recoil Distance Doppler-Shift measurement has been carried out on 60 Ni to re-measure the lifetime of the 2 1 + and 4 1 + states. The new lifetime of the 2 1 + state supports the adopted NNDC value but disagrees with the results of two more recent Doppler-Shift Attenuation Method measurements, which suggested a longer lifetime. The new result for the 4 1 + state's lifetime is significantly shorter than the one recommended in the latest NNDC compilation while also reducing its uncertainty. It therefore resolves an unclear situation, where an unexpected drop in transition strength appeared from 58 Ni to 60 Ni. Both values match very well with recently applied shell model calculations using the GXPF1A interaction. [ABSTRACT FROM AUTHOR]