Angular correlations of coincident gamma transitions have been measured in ${}_{}{}^{142}{}_{}{}^{}\mathrm{Ce}$ following the ${\mathrm{\beta }}^{\mathrm{-}}$ decay of fission product ${}_{}{}^{142}{}_{}{}^{}\mathrm{La}$ (${\mathit{T}}_{1/2}$=93 min) using a spectrometer consisting of a Ge and a Ge(Li) detector. The measurements were made on 14 direct and 13 skip cascades. Spin assignments were made to the levels at 2181 keV ($3^{+}$), 2727 keV ($1^{+}$), 3612 keV ($2^{+}$), and 4043 keV ($2^{+}$). In addition several previous spins assignments to other levels were confirmed. The multipole mixing ratios δ for 23 transitions were determined from the present results.

• Received 18 October 1989

DOI:https://doi.org/10.1103/PhysRevC.41.2312