Properties of quadrupole-octupole coupled states in $^{116}$Cd from the (n, n$^{\prime}\gamma$) reaction

Negative-parity levels in the 2.4 MeV region, arising from the coupling of the 2$^{+}_{1}$ quadrupole and 3$^{-}_{1}$ octupole states, have been investigated with the (n, n$^{\prime}\gamma$) reaction. The measured $\gamma$-ray excitation functions, $\gamma$-$\gamma$ coincidences and angular distributions were utilized to characterize the decays of these states. The level lifetimes have been measured with the Doppler-shift attenuation method, and B(E1) and B(E2) values for the associated transitions have been determined. The enhanced B(E2) values for decay to the 3$^{-}$ octupole state from many of the candidate negative-parity states were observed to be consistent with the expected signature of quadrupole-octupole coupled states. The properties of these states will be compared with the systematics of quadrupole-octupole coupled states in Cd isotopes and IBM calculations.