Abstract : A search for 28O with a 78 AMeV beam of the neutron-rich isotope 36S has been performed for the first time. Evidence for the unbound character of 28O was obtained. In the same experiment the half-lives of the very neutron-rich isotopes 27,29F and 30Ne were measured and those for 28,29Ne and 30,31Na reexamined. The results are compared to shell-model predictions and conclusions drawn regarding the extent of the region of deformation around N = 20.
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O.V. Tarasov, R. Allatt, J.C. Angélique, R. Anne, C. Borcea, et al.. Search for $^{28}O$ and study of neutron-rich nuclei near the N=20 shell closure. Physics Letters B, Elsevier, 1997, 409, pp.64-70. 〈10.1016/S0370-2693(97)00901-5〉. 〈in2p3-00022986〉
