Deformed92+States andΔJ=1Rotational Bands inSb113,115,117,119Nuclei

A set of $\Delta J=1\mathrm{}$ rotational bands has been observed on deformed (prolate) ${\frac{9}{2}}^{+}$ states in ${}_{}{}^{113}{}_{}{}^{}\mathrm{Sb}$, ${}_{}{}^{115}{}_{}{}^{}\mathrm{Sb}$, ${}_{}{}^{117}{}_{}{}^{}\mathrm{Sb}$, and ${}_{}{}^{119}{}_{}{}^{}\mathrm{Sb}$ via (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, $3n\gamma$) reactions on stable even Cd targets. The pattern of band spacings is suggestive of a $j={\frac{9}{2}}^{+}$ state coupled to a triaxial rotor. The energy systematics of the deformed states relate to the deformation-energy surfaces in this $Z=50\mathrm{}$ closed-shell region.