| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9861401 | Physics Letters B | 2005 | 9 Pages |
Abstract
The excited states in the light neutron-rich nucleus 11Be have been studied through the β-delayed neutron- and γ-decays from spin-polarized11Lig.s.. The level scheme and decay scheme of 11Beâ are established from the β-γ, β-n and β-n-γ coincidences, and the spins and parities for 7 levels in 11Be are firmly assigned from the β-decay asymmetries measured in coincidence with the delayed radiations. The neutron-spectroscopic factors of the levels in 11Be are also determined. Some of the levels show good accord with predictions by the anti-symmetrized molecular dynamics (AMD) theory, which predicts various types of 2α-cluster states in the rotational bands and a single α-cluster state.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Y. Hirayama, T. Shimoda, H. Izumi, A. Hatakeyama, K.P. Jackson, C.D.P. Levy, H. Miyatake, M. Yagi, H. Yano,