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

Pain, S D; Catford, W N; Orr, N A; Angélique, J C; Ashwood, N I; Bouchat, V; Clarke, N M; Curtis, N; Freer, M; Fulton, B R; Hanappe, F; Labiche, M; Lecouey, J L; Lemmon, R C; Mahboub, D; Ninane, A; Normand, G; Soic, N; Stuttge, L; Timis, C N; Tostevin, J A; Winfield, J S; Ziman, V

Pain, S D; Catford, W N; Orr, N A; Angélique, J C; Ashwood, N I; Bouchat, V; Clarke, N M; Curtis, N; Freer, M; Fulton, B R; Hanappe, F; Labiche, M; Lecouey, J L; Lemmon, R C; Mahboub, D; Ninane, A; Normand, G; Soic, N; Stuttge, L; Timis, C N; Tostevin, J A; Winfield, J S; Ziman, V.

Affiliation

Pain SD; Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom.

Phys Rev Lett ; 96(3): 032502, 2006 Jan 27.

Article in En | MEDLINE | ID: mdl-16486692

ABSTRACT

ABSTRACT

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.

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Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2006 Document type: Article Affiliation country: United kingdom

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Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2006 Document type: Article Affiliation country: United kingdom