CLUSTER STATES AND ALPHA PARTICLE CONDENSATION IN C-13

摘要

The structure of C-13 is studied with the semi-microscopic cluster model, 3 alpha+n orthogonality condition model (OCM). The energy spectra of four 1/2(-) states and three 1/2(+) states up to E-x similar to 13 MeV are successfully reproduced, in particular, three monopole transition strengths are in fair agreement with the observed ones. We discuss the cluster states and alpha particle condensation in the 1/2(+/-) states appearing around the C-12+n, Be-9+alpha and 3 alpha+n thresholds.