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arXiv · nucl-th/9903013

Modern nucleon-nucleon interactions and charge-symmetry breaking in nuclei

C. Harzer·H. Müther·R. Machleidt
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Abstract

Coulomb displacement energies, i.e., the differences between the energies of corresponding nuclear states in mirror nuclei, are evaluated using recent models for the nucleon-nucleon (NN) interaction. These modern NN potentials account for breaking of isospin symmetry and reproduce $pp$ and $pn$ phase shifts accurately. The predictions by these new potentials for the binding of $^{16}O$ are calculated. A particular focus of our study are effects due to nuclear correlations and charge-symmetry breaking (CSB). We find that the CSB terms in the modern NN interactions substantially reduce the discrepancy between theory and experiment for the Coulomb displacement energies; however, our calculations do not completely explain the Nolen-Schiffer anomaly. Potential sources for the remaining discrepancies are discussed.

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C. Harzer, H. Müther, R. Machleidt. 1999-03-05. Modern nucleon-nucleon interactions and charge-symmetry breaking in nuclei. https://doi.org/10.1016/s0370-2693(99)00670-x

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