Elsevier

Nuclear Physics A

Volume 344, Issue 2, 4 August 1980, Pages 294-306
Nuclear Physics A

Measurement of the g-factor and lifetime of the first-excited state of 20O

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Abstract

The g-factor and mean lifetime of the first-excited 2+ state at 1.67 MeV in 20O have been determined by means of a plunger set-up. The state was populated by the 3H(18O, pγ)20O reaction at E(18O) = 24.5 MeV. The analysis of p-γ anisotropies as a function of flight path of the recoiling ion in vacuum leads to a value for the g-factor of |g| = 0.352±0.015 and to a mean life of τ = 10.7±0.4 ps.

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    Present address: Department of Nuclear Physics, University of Oxford, England.

    ††

    Present address: Natuurkundig Laboratorium, Vrije Universiteit, Amsterdam, The Netherlands.

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