Comparison of multi- ħω shell-model results with MCAS

A multi-channel algebraic scattering (MCAS ) method has been used to obtain spectra of a number of light-mass nuclei, which are treated as a two-cluster system, here specifically a nucleon plus nucleus. To date, collective models have been used to specify the interactions between the nucleon and low-lying states of the nucleus that form the compound. For the case of the carbon isotopes, these studies have been complemented by sufficiently complex and complete shell-model calculations. Comparisons with the multi-h omega shell-model results provide new insights into the validity of those from MCAS.