Munich efforts to search for proton radioactivity in beam

This report will cover four topics: 1) The development of catcher techniques to detect shortlived particle radioactivities. With this setup proton emission from 113Cs and 109I has been observed for the first time (1983). Their slow decay rate has been realized and for the first time expressed in terms of a spectroscopic factor. 2) A discussion of various types of recoil separation schemes and experiments using an electrostatic deflector, which yielded improved decay data for 113Cs and 109I. 3) The production of proton rich nuclei by fragmentation of relativistic 124Xe and 112Sn ions at GSI and the determination of their decay properties. The beta-decay halflives of 105Sb and 77Y as well as of many other nuclei along the path of rp-process nucleosynthesis have been measured. In Tz=−1/2 nuclei proton decay has to compete with superallowed Fermi-decay, which is also observed for the Tz=0 odd-odd nuclei between 78Y and 94Ag. 4) A possible solution to the problem how to detect the proton decay of 39Sc (Sp=−0.6...