2006/12/29 by Yoshiko Kanada-En’yo, Yoshiko Kanada-En'yo · 98 citations
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Atomic physics #Chemistry #Cluster (spacecraft) #Computer science #Crystallography #Nuclear physics research studies #Parity (physics) #Physics #Spin states #nucl-th
paper · pdf · doi:10.1103/physrevc.75.024302
published in Physical Review C 75(2) (American Institute of Physics) · 10 pages, 4 figures, submitterd to Physical Review C
arxiv created 2006/12/29 · openalex publication_date 2007/02/08 · arxiv updated 2009/12/01 · openalex created_date 2019/12/13 · openalex updated_date 2026/07/07
The negative parity states of 11B and 11C were studied based on the calculations of antisymmetrized molecular dynamics (AMD). The calculations reproduced well the experimental strengths of Gamov-Teller (GT), M1, and monopole transitions. We especially focused on the 3/23^\ensuremath- and 5/22^\ensuremath- states for which GT transition strengths were recently measured. The weak M1 and GT transitions for 3/23^\ensuremath- in 11B and 11C are described by a well-developed cluster structure of 2\ensuremathα+t and 2\ensuremathα+3He, respectively, while the strong transitions for 5/22^\ensuremath- is characterized by an intrinsic spin excitation with no cluster structure. It was found that the 3/23^\ensuremath- state is a dilute cluster state, and its features are similar to those of 12C(02+) which is considered to be a gas state of 3\ensuremathα clusters.