### Abstract

We present the framework for the ab initio no-core nuclear shell model and apply it to obtain properties of [Formula Presented] We derive two-body effective interactions microscopically for specific model spaces from the realistic CD-Bonn and the Argonne V8’ nucleon-nucleon [Formula Presented] potentials. We then evaluate binding energies, excitation spectra, radii, and electromagnetic transitions in the [Formula Presented] and [Formula Presented] model spaces for the positive-parity states and the [Formula Presented] and [Formula Presented] model spaces for the negative-parity states. Dependence on the model-space size, on the harmonic-oscillator frequency, and on the type of the [Formula Presented] potential, used for the effective interaction derivation, are studied. In addition, electromagnetic and weak neutral elastic charge form factors are calculated in the impulse approximation. Sensitivity of the form-factor ratios to the strangeness one-body form-factor parameters and to the influence of isospin-symmetry violation is evaluated and discussed. Agreement between theory and experiment is favorable for many observables, while others require yet larger model spaces and/or three-body forces. The limitations of the present results are easily understood by virtue of the trends established and previous phenomenological results.

Original language | English (US) |
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Number of pages | 1 |

Journal | Physical Review C - Nuclear Physics |

Volume | 62 |

Issue number | 5 |

DOIs | |

State | Published - Jan 1 2000 |

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

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## Cite this

*Physical Review C - Nuclear Physics*,

*62*(5). https://doi.org/10.1103/PhysRevC.62.054311