The mass excess of ${}_{}{}^{89}{}_{}{}^{}\mathrm{Mo}$ has been measured using the ${}_{}{}^{92}{}_{}{}^{}\mathrm{Mo}$(${}_{}{}^3{}_{}{}^{}\mathrm{He}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) reaction at 70-MeV bombarding energy. The mass excess was determined to be - 75.008 ± 0.015 MeV. The excited states observed are also reported.

NUCLEAR REACTIONS ${}_{}{}^{92}{}_{}{}^{}\mathrm{Mo}$(${}_{}{}^3{}_{}{}^{}\mathrm{He}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) ${}_{}{}^{89}{}_{}{}^{}\mathrm{Mo}$; $E=70\mathrm{}$ MeV, measured reaction $Q$ values, deduced mass excess, excitation energies.

• Received 4 June 1979

DOI:https://doi.org/10.1103/PhysRevC.21.462