Half-life of the I^π 4^- intruder state in ³⁴P using LaBr₃:Ce fast timing

Abstract

The half-life of the Iπ 4- intruder state at 2305 keV in 3415P19 has been measured using γ-ray coincident fast timing with LaBr3:Ce scintillation detectors. Excited states in 34P were populated in the 18O(18O,pn)34P reaction at a beam energy of 36 MeV at the Tandem Laboratory at the National Institute of Physics and Nuclear Engineering, Bucharest, Romania. A half-life of t1/2 ∼ 2 ns was obtained for the 4- state, giving an M2 reduced transition probability consistent with similar transitions in this mass region and confirming the intruder-parity nature of the state. Show more