English

Three-body structure of the $nn\Lambda$ system with $\Lambda N-\Sigma N$ coupling

Nuclear Theory 2015-06-19 v1

Abstract

The structure of the three-body nnΛnn\Lambda system, which has been observed recently by the HypHI collaboration, is investigated taking ΛNΣN\Lambda N-\Sigma N coupling explicitly into account. The YNYN and NNNN interactions employed in this work reproduce the binding energies of Λ3^3_{\Lambda}H, Λ4^4_{\Lambda}H and Λ4^4_{\Lambda}He. We do not find any Λ3n^3_{\Lambda}n bound state, which contradicts the interpretation of the data reported by the HypHI collaboration.

Keywords

Cite

@article{arxiv.1405.2365,
  title  = {Three-body structure of the $nn\Lambda$ system with $\Lambda N-\Sigma N$ coupling},
  author = {E. Hiyama and S. Ohnishi and B. F. Gibson and Th. A. Rijken},
  journal= {arXiv preprint arXiv:1405.2365},
  year   = {2015}
}

Comments

To be publsihed in PRC as a Rapid communication

R2 v1 2026-06-22T04:10:29.238Z