Levels in the three-hole nucleusAg105and the decay of 55.5-minCd105

The $\gamma$-ray spectrum following the decay of 55.5-min ${}_{}{}^{105}{}_{}{}^{}\mathrm{Cd}$ to levels of ${}_{}{}^{105}{}_{}{}^{}\mathrm{Ag}$ has been studied by singles, coincidence, and Compton-suppressed $\gamma$-ray spectroscopy. Sources were prepared by the ($n,2\mathrm{}n$) reaction on isotopically enriched ${}_{}{}^{106}{}_{}{}^{}\mathrm{Cd}$ sources using 14-MeV neutrons. A total of 274 $\gamma$ rays are attributed to the decay of ${}_{}{}^{105}{}_{}{}^{}\mathrm{Ag}$, and ∼248 are placed in a level scheme involving 53 excited states. These data along with the results of (${}_{}{}^3{}_{}{}^{}\mathrm{He},d$) and ($p,t$) reaction studies were utilized to make spin and parity assignments for many of the levels. The systematics of the $Z=47\mathrm{}$ silver nuclides are compared with various theoretical calculations and the systematics among the $N=58\mathrm{}$ isotones are discussed.