The beta-decay of 22Al

Achouri, N. L.; Santos, F. de Oliveira; Lewitowicz, M.; Blank, B.; Aysto, J.; Canchel, G.; Czajkowski, S.; Dendooven, P.; Emsallem, A.; Giovinazzo, J.; Guillet, N.; Jokinen, A.; Laird, A. M.; Longour, C.; Perajarvi, K.; Smirnova, N.; Stanoiu, M.; Thomas, J. C.

The beta-decay of 22Al

Authors

Achouri, N. L.

Santos, F. de Oliveira

Description

In an experiment performed at the LISE3 facility of GANIL, we studied the decay of 22Al produced by the fragmentation of a 36Ar primary beam. A beta-decay half-life of 91.1 +- 0.5 ms was measured. The beta-delayed one- and two-proton emission as well as beta-alpha and beta-delayed gamma decays were measured and allowed us to establish a partial decay scheme for this nucleus. New levels were determined in the daughter nucleus 22Mg. The comparison with model calculations strongly favours a spin-parity of 4+ for the ground state of 22Al.