### Abstract

We carried out four-body calculations of ^{4}_{Λ}H and ^{4}_{Λ}He taking both the 3N + Λ and 3N + Σ channels explicitly with the use of realistic N N and Y N interactions. The Σ-channel component plays an important role in binding energies of the A = 4 hypernuclei though the admixture is approximately 1%. The ΛN - ΣN coupling is found to be of central-force type in the Nijmegen model D and of tensor-force type in the model F.

Original language | English |
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Pages (from-to) | 273-276 |

Number of pages | 4 |

Journal | Nuclear Physics A |

Volume | 670 |

Issue number | 1-4 |

Publication status | Published - May 8 2000 |

Externally published | Yes |

### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

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## Cite this

Hiyama, E. (2000). Four-body calculation of

^{4}_{Λ}H and^{4}_{Λ}He with realistic Y N and N N interactions.*Nuclear Physics A*,*670*(1-4), 273-276.