Electromagnetic transition rates in the nucleus ¹³⁶ ₅₈Ce

Abstract The half-life of the first 6+ state in 136Ce has been measured as T1⁄2 = 41(12) ps using the γ-ray fast-timing technique with the ν-ball spectrometer at the ALTO Tandem Accelerator, Orsay, France. The states of interest in 136Ce have been populated via the 128Te(12C,4nγ) fusion-evaporation reaction. A comparison is made between the value obtained for the reduced transition probability B(E2; 6+ 1 → 4+ 1 ) = 0.55(21) W.u. and the systematics of the region. In this work, half-lives for the 5- 1 , 7- 1 and 6+ 2 states in 136Ce were also determined.