The BGO calorimeter of the Canadian $8\pi$ $\gamma$-ray spectrometer was used to select the weak $2p$ channel in Ni-Ni fusion reactions, populating proton-rich ${}^{114}\mathrm{Xe}$ and ${}^{116}\mathrm{Xe}.\mathrm{}$ Lifetimes were measured for transitions within the low-lying positive and negative parity bands in ${}^{114,116}\mathrm{Xe}.\mathrm{}$ Measured $B\left(E2\mathrm{}\right)\mathrm{}$ values within the positive parity band were compared to calculations with algebraic models. Measured $B\left(E2\mathrm{}\right)\mathrm{}$ values within the negative parity band in ${}^{114}\mathrm{Xe}$ suggest a change in structure relative to that of the same band in the heavier xenon isotopes.

• Received 9 October 1997

DOI:https://doi.org/10.1103/PhysRevC.58.164