Identification of new nuclei near the proton-drip line for 31≤<i>Z</i>≤38

Abstract

An E/A=65 MeV $^{78}\mathrm{Kr}$ beam has been used to produce six new isotopes near the proton-drip line. The newly commissioned A1200 beam-analysis device was used to observe the astrophysically interesting isotope $^{65}\mathrm{As}$, as well as $^{61}\mathrm{Ga}$, $^{62}\mathrm{Ge}$, $^{63}\mathrm{Ge}$, $^{69}\mathrm{Br}$, and $^{75}\mathrm{Sr}$. Implications of the observation of these nuclei are discussed in terms of the astrophysical rp process.