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Dedicated to Professor Friedrich Beck on the occasion of his 60th birthdayProton radioactivities with decay energies of (0.98+0.08)MeV and (0.83___0.08)MeV were produced by the fusion reactions 58Ni + 58Ni ~ 116Ba, and 58Ni + 54Fe ~ ~ l ZXe*, and their halflives were measured to be (33 +_7)gs and (109+_ 17)gs, respectively. The intensities of the lines correspond to production cross sections of about 30 gb and 40 gb. The two activities are assigned to the direct proton decay of H3Cs and 1~ The measured halflives are compared with values calculated for d5/2 and g7/2 groundstates of 1~ and a13Cs and spectroscopic factors are deduced for the decays. An extensive search for the proton decay of 1~ produced in the reaction S~ p2n)l~ had a negative result, excluding decay energies between 0.5 MeV and 1.5 MeV for halflives between 10 ns and 5 s.

Mass and charge transfer was investigated for the system ~36Xe+2~ at 5.9 MeV/nucleon incident energy with a AE-E-time of flight telescope. The angle and energy integrated cross section for the strongly damped events was found to be 510rob, very close to the total reaction cross section. The width of the mass distribution as function of the total kinetic energy loss was measured and is compared to the width of the corresponding charge distribution. An upper limit of 1 pb has been found for processes with very large mass transfer.

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