Abstract

Measurements have been made of the yield of γ-rays following the Coulomb excitation of 70Ge with 35Cl ions at energies from 60 to 83 MeV and with 32S ions at 75.7 MeV. A γ-ray of 175.9 ± 0.3 keV has been observed and has been associated with the decay of the excited 0 2 + state in 70Ge. A comparison of the yield of this γ-ray with the γ-ray de-exciting the 2 1 + state of 70Ge gives a B(E2; 2 1 + → 0 2 +) = 0.0158 ± 0.0024 e 2 · b 2, in reasonable agreement with previous lifetime measurements but in disagreement with a previous Coulomb excitation result. An attempt has been made to observe Coulomb excitation of the second excited 2 2 + state and thereby determine the latter's effect on the excitation of the 0 2 + state.

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