The linear polarization of $\gamma$ rays from the deexcitation of Cd isotopes $A=105\mathrm{}$ through 109 following (${}_{}{}^{16}{}_{}{}^{}\mathrm{O},xn$) reactions were measured using a Ge(Li) Compton polarimeter. The linear polarizations are used with $\gamma$-ray angular distributions to make unique-parity assignments and to remove ambiguity in angular-momentum values. With these measurements it is possible to identify many states in ${}_{}{}^{105-109}{}_{}{}^{}\mathrm{Cd}$ which are similar to states in Pd nuclei that have been interpreted as having one, two, or three quasiparticles coupled to a slightly deformed rotating core.

[NUCLEAR REACTIONS ${}_{}{}^{92}{}_{}{}^{}\mathrm{Zr}({}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, $3n\gamma )$, $E=58\mathrm{}$ MeV; ${}_{}{}^{94}{}_{}{}^{}\mathrm{Zr}({}_{}{}^{16}{}_{}{}^{}\mathrm{O},4n\gamma )$, $E=63\mathrm{}$ MeV; ${}_{}{}^{94}{}_{}{}^{}\mathrm{Zr}({}_{}{}^{16}{}_{}{}^{}\mathrm{O},3n\gamma )$, $E=59\mathrm{}$ MeV; ${}_{}{}^{96}{}_{}{}^{}\mathrm{Zr}({}_{}{}^{16}{}_{}{}^{}\mathrm{O},4n\gamma )$, $E=56\mathrm{}$ MeV; ${}_{}{}^{96}{}_{}{}^{}\mathrm{Zr}({}_{}{}^{16}{}_{}{}^{}\mathrm{O},3n\gamma )$, $E=56\mathrm{}$ MeV. Linear polarization of ${}_{}{}^{105-106}{}_{}{}^{}\mathrm{Cd}$ $\gamma$ rays measured.]

• Received 20 April 1977

DOI:https://doi.org/10.1103/PhysRevC.17.143