Half-life of the Iπ = 4− Intruder State in 34P Using LaBr3:Ce Fast Timing
2012
The
half-lifeof the Iπ = 4−
intruder stateat 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-lifeof 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.
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