Lifetime of the $0^{+}$ Excited State in ${Ge}^{70}$

It is found by a delayed-coincidence measurement that part of the 1.04-Mev gamma radiation following the beta decay of

{Ga}^{70}

is delayed with a mean life of

τ = (4.0 \pm 0.9) \times 10^{- 9}

sec. This lifetime is assigned to the

0^{+}

level in

{Ge}^{70}

at 1.2 Mev which feeds the

2^{+}

level by a 0.174-Mev

E 2

transition. The observed mean life is about sixty times shorter than the Weisskopf single-particle estimate for the quadrupole transition.

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Lifetime of the0+Excited State inGe70