Large-basis, no-core shell-model calculations

Abstract

Shell-model calculations have been limited by the size of the model space and by the need for an effective interaction within the model space. To simplify the interaction, we propose working in a large model space, in which all A nucleons of a given nucleus are active for a complete NℏΩ basis space and a large value for N. We call this procedure the large-basis, no-core shell model. We briefly describe this approach and discuss some of our results for A≲12.