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Using a 14SGd radioactive target and the (p, d), (d, t), and (3He, c~) single neutron pick-up reactions we have measured the 147Gd mass excess as -75,366(4)keV, which differs by 139(24) keV from the adopted value of the 1983 mass table. From this result, and from recently reported first transfer-reaction mass determinations for 14SEu and 146Eu, we have recalculated the masses of nuclei above 146Gd from a previous shell model analysis of high-spin states.

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Collective excitations in the two-particle nucleus 14SGd up to 2.9 MeV have been investigated by the pp'-reaction at 25 MeV beam energy, and angular distributions have been analyzed with standard DWBA calculations. It is found that ~48Gd has larger octupole-than quadrupole collectivity in the energy range investigated. The 3strength distribution is in quantitative agreement with predicted results for the levels formed by the coupling of two valence particles to the ~46Gd core octupole phonon.

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