Studies with one- and two-proton drip line nuclei

In recent experiments at GANIL, we studied nuclei at the one- and two-proton drip line. The production rates allowed to search for direct 2p emission in the drip line nuclei 42Cr, 45Fe, and 49Ni. No evidence for this decay mode was found in 42Cr and 49Ni, whereas the situation stays unclear for 45Fe due to the limited statistics. In the medium-mass region (A=50-70), the half-life was measured for all proton-rich nuclei in the range Tz=0 to Tz=-1 between Z=27 and Z=36. First half-lives were determined for 60Ga, 62Ge, 64As and 66Se. Finally, β-decay studies of the 0+ →0+ decay of 62Ga have been performed at IGISOL in Jyvaeskylae. Non-analog transitions have been observed and are compared to theoretical predictions. (orig.)