1. Structure of 12Be: intruder d-wave strength at N=8.
- Author
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Pain SD, Catford WN, Orr NA, Angélique JC, Ashwood NI, Bouchat V, Clarke NM, Curtis N, Freer M, Fulton BR, Hanappe F, Labiche M, Lecouey JL, Lemmon RC, Mahboub D, Ninane A, Normand G, Soić N, Stuttge L, Timis CN, Tostevin JA, Winfield JS, and Ziman V
- 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.
- Published
- 2006
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