Proton hole states in neutron rich nuclei nearA=100

A study of proton hole states in neutron rich nuclei near $A=100\mathrm{}$ has been carried out using the ($\overrightarrow{t}$,$\alpha$) reaction. Targets of ${}_{}{}^{104}{}_{}{}^{}\mathrm{Ru}$ and ${}_{}{}^{110}{}_{}{}^{}\mathrm{Pd}$ were bombarded with a beam of 17 MeV polarized tritons and the reaction $\alpha$ particles detected in a quadrupole-three-dipole spectrometer. Only the $\beta$ decays of the residual nuclei, ${}_{}{}^{103}{}_{}{}^{}\mathrm{Tc}$ and ${}_{}{}^{109}{}_{}{}^{}\mathrm{Rh}$, have been previously observed. The results indicate a smooth trend with $Z$ of the proton single particle states observed in this region, except for ${}_{}{}^{103}{}_{}{}^{}\mathrm{Tc}$. Examination of this nucleus indicates a strong tendency towards deformation.