Spectroscopy of 32Ne and the "Island of Inversion"
2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, no 3, 032501-1-032501-4 p.Article in journal (Refereed) Published
We report on the first spectroscopic study of the N = 22 nucleus 32Ne at the newly completed RIKEN Radioactive Ion Beam Factory. A single γ-ray line with an energy of 722(9) keV was observed in both inelastic scattering of a 226 MeV=u 32Ne beam on a carbon target and proton removal from 33Na at 245 MeV=u. This transition is assigned to the deexcitation of the first Jπ = 2+ state in 32Ne to the 0+ ground state. Interpreted through comparison with state-of-the-art shell-model calculations, the low excitation energy demonstrates that the ‘‘island of inversion’’ extends to at least N = 22 for the Ne isotopes.
Place, publisher, year, edition, pages
American Physical Society, 2009. Vol. 103, no 3, 032501-1-032501-4 p.
Research subject Nuclear Physics
IdentifiersURN: urn:nbn:se:uu:diva-223483DOI: 10.1103/PhysRevLett.103.032501OAI: oai:DiVA.org:uu-223483DiVA: diva2:713146