English

On a quasi-bound state in the $K^- d$ system caused by strong interactions

Nuclear Theory 2020-08-26 v2
Authors: N. V. Shevchenko
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Abstract

It was found that NNNN potential could influence the results of the quasi-bound state search in the K−dK^- d system, where the corresponding pole is situated close to the threshold. Three-body Faddeev-type calculations of the KˉNN−πΣN\bar{K}NN - \pi \Sigma N system performed with a new model of nucleon-nucleon interaction predict the existence of the quasi-bound K−dK^- d state caused by strong interactions. Its binding energy is small (1−21-2 MeV), while the width is comparable with the width of the K−ppK^- pp quasi-bound state (40−6040-60 MeV).

Keywords

quasi-bound state K-d system strong interaction Faddeev equations nn potential binding energy

Cite

@article{arxiv.2006.09800,
  title  = {On a quasi-bound state in the $K^- d$ system caused by strong interactions},
  author = {N. V. Shevchenko},
  journal= {arXiv preprint arXiv:2006.09800},
  year   = {2020}
}

Comments

8 pages, 2 figures, 4 tables; v2: minor changes in Section 2, additional information about the NN potential in Section 3; accepted to the special issue of Few-Body Systems journal "New Trends in Hadron Physics: a Few-Body Perspective"

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