Elsevier

Nuclear Physics A

Volume 237, Issue 1, 6 January 1975, Pages 18-28
Nuclear Physics A

Lifetime measurements in 22Mg

https://doi.org/10.1016/0375-9474(75)90460-1Get rights and content

Abstract

The (3He, n) reaction on implanted 20Ne targets was used to measure lifetimes in 22Mg with the Doppler shift attenuation method (DSAM). From n-γ coincidence spectra at 0°, 90° and 120° taken at 10 MeV bombarding energy the following lifetimes and limits were deduced for the states at 1.25, 3.31, 4.40, 5.30 and 5.71 MeV, respectively: 4200±1500 fs, 290±65 fs, < 30 fs, 63±20 fs and 40±15 fs. The results are discussed in comparison to the mirror nucleus 22Ne and recent shell model and SU(3) predictions.

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Work supported by the German Bundesministerium für Forschung und Technologie.

††

Present address. Supported in part by the National Research Council of Canada.

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