학술논문
Structure of 12Be: intruder d-wave strength at N=8
Document Type
Working Paper
Author
Pain, S. D.; Catford, W. N.; Orr, N. A.; Angelique, 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.
Source
Phys.Rev.Lett. 96 (2006) 032502
Subject
Language
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 0 hbar omega neutron p1/2-orbital and the 1 hbar omega, neutron d5/2 intruder orbital were deduced from a measurement of neutron removal from a high-energy 12Be beam leading to bound and unbound states in 11Be.
Comment: 5 pages, 2 figures
Comment: 5 pages, 2 figures