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Excitation functions of the one-and two-particle evaporation reactions 160(7Li, x~) and 160(7Li, xyT) , x, y=n, p, d, t and c~ have been measured in steps of 100-160 keV for ELi=4-10 MeV. All yield curves were rather smooth and could well be described by statistical model calculations taking into account one-and two-particle decays. No significant deviations of the total fusion cross section from the reaction cross section as given by the optical model were observed. A critical comparison is performed with earlier data of the same reaction taken at slightly higher energies where drastically reduced fusion cross sections were reported.

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A status report is given on an experiment started in 1987 at PSI to search for the lepton flavour violating muon to electron conversion process. The motivation for this experiment, the design and performance of the detector (SINDRUM II), and results of a first run are presented. No candidate of the process mu -Ti to e-Ti was found, and, using two independent determinations of the muon stop rate, an upper limit for the branching ratio relative to muon capture Bmu e<4.4.10-12 (90% C.L.) was obtained. This result confirms the current best value for the upper limit found at TRIUMF (4.6.10-12).

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Electric quadrupole transition strengths for the 2[, T= 1 ~0~, T--1 y-decay branches are summarized for 10<_A_<42 nuclei. In I~ the corresponding branch has been remeasured by use of the 9Be(p, y)l~ resonance reaction at Ep=320 keV; an upper limit of 0.6 % is found. The variation of the E2 strengths within each individual T= 1 isobaric multiplet reveals the particle-or hole-character of the levels involved. The isoscalar 2~-~0[ transition strengths in 10_