Lifetime measurement of 2(1)(+) state in Zn-74 by recoil-distance Doppler-shift method

We have performed the first direct lifetime measurement of the 2(1)(+) state in Zn-74. The neutron-rich 74Zn beam was produced by in-flight fragmentation of Ge-76 at the Grand Accelerateur National d'Ions Lourds and separated with the LISE spectrometer. The lifetime of the 2(1)(+) state was measured by the recoil-distance Doppler-shift method with the Cologne plunger device combined with the EXOGAM detectors. The lifetime of the 2(1)(+) state in Zn-74 was determined to be 27.0(24) ps, which corresponds to a reduced transition probability B(E2; 2(1)(+) -> 0(+)) = 370(33) e(2)fm(4).