The high-spin structure of the ${}^{105}\mathrm{Ag}$ nucleus has been studied by using the ${}^{100}\mathrm{Mo}$(${}^{10}\mathrm{B}$, $5n)$${}^{105}\mathrm{Ag}$ reaction to search for chiral doublet bands based on the three-quasiparticle $\pi g_{9/2}\nu (h_{11/2}){}^2$ configuration. The level scheme of ${}^{105}\mathrm{Ag}$ has been extended. New bands were found and the placement of the yrast $\pi g_{9/2}\nu (h_{11/2}){}^2$ band was corrected. No side band to the yrast $\pi g_{9/2}\nu (h_{11/2}){}^2$ band could be found in the present experiment. This observation indicates that the γ-soft shape in the ${}^{106}\mathrm{Ag}$ changed to a more γ-rigid axially symmetric shape in the yrast ${}^{105}\mathrm{Ag}$ configuration. However, a new pair of bands was observed to show the expected properties of a chiral doublet structure.

• Received 11 April 2007

DOI:https://doi.org/10.1103/PhysRevC.76.024307