## Abstract

It has been shown in the past that in a shell model calculation, restricted to 1hω 1p-1h configurations, the energy splitting between the lowest J^{π} = 0^{-}, T = 0 and J^{π} = 0^{-}, T = 1 states in ^{16}O is mainly due to the tensor component of the nucleon-nucleon interction. In this work, we extend the calculation to include 3hω 2p-2h and 3p-3h configurations. We use realistic G matrices derived from various one-boson-exchange potentials, taking into account the effects of the Dirac-Brueckner-Hartree-Fock approach, i.e., a modification of the Dirac spinors for the nucleons in the medium. It is found that the splitting is rather sensitive to the long-range components of the isovector tensor force. The splitting is reduced considerably by including 2p-2h configurations.

Original language | English (US) |
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Pages (from-to) | 118-130 |

Number of pages | 13 |

Journal | Annals of Physics |

Volume | 230 |

Issue number | 1 |

DOIs | |

State | Published - Feb 15 1994 |

## All Science Journal Classification (ASJC) codes

- Physics and Astronomy(all)

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