Model space truncation in shell-model fits

Truncation of Large Shell-model Eigenproblems by Model Space Partitioning

A method for solving the shell-model eigenproblem in a severely truncated space, spanned by properly selected correlated states obtained by partitioning the full configuration space, is proposed. The method describes in a practically exact way the low energy spectroscopic properties of nuclei, as exemplified in schematic models. The applicability of the method to heavy nuclei as well as in cont...

Solution of the Nuclear Shell Model by Symmetry - Dictated Truncation ∗

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Large-space shell-model calculations for light nuclei.

An effective two-body interaction is constructed from a new Reidlike NN potential for a large no-core space consisting of six major shells and is used to generate the shell-model properties for light nuclei from A=2 to 6. For practical reasons, the model space is partially truncated for A=6. Binding energies and other physical observables are calculated and they compare favorably with experimen...