Abstract
It is shown that the Cholesky decomposition method, implemented in mirror nuclei to extract an orthonormal basis from a redundant set of states composed of a valence particle (hole) coupled to Tamm-Dancoff approximation (TDA) phonons, yields a few levels which violate the mirror symmetry, at variance with the shell model. A more appropriate implementation of the method is suggested which eliminates this inconsistency.
- Received 3 October 2019
- Accepted 6 February 2020
DOI:https://doi.org/10.1103/PhysRevC.101.024308
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