Structure of 12Be: Intruder d-wave strength at N=8

SD Pain, Nicholas Ashwood, Norman Clarke, Neil Curtis, Martin Freer, N Soic, Victor Ziman

Research output: Contribution to journalArticle

89 Citations (Scopus)


The breaking of the N=8 shell-model magic number in the 12Be ground state has been determined to include significant occupancy of the intruder d-wave orbital. This is in marked contrast with all other N=8 isotones, both more and less exotic than 12Be. The occupancies of the [FORMULA: SEE TEXT]orbital and the [FORMULA: SEE TEXT], intruder orbital were deduced from a measurement of neutron removal from a high-energy 12Be beam leading to bound and unbound states in 11Be.
Original languageEnglish
Pages (from-to)032502
Number of pages1
JournalPhysical Review Letters
Issue number3
Publication statusPublished - 1 Jan 2006


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