The masses of A=60-70 nuclei close to the N=Z line

摘要

The masses of very neutron-deficient 66{sup left}As, (68, 70, 71) {sup left}Se and 71{sup left}Br were measured for the first time and those of (64, 65){sup left}Ge and 67{sup left}As remeasured, with total uncertainties ranging from 200 to 1000 keV, including systematic, extrapolation and statistical errors, using the SPEG direct time-of-flight method at GANIL. These new results are discussed and compared to other recent experimental data and mass predictions.