Coupled $\Lambda N-\Sigma N$ and $\Lambda NN-\Sigma NN$ systems and   hyperon-nucleon interactions
  This paper summarizes our studies of the hypertriton and describes our findings on the hyperon-nucleon interaction, especially on the role of the $\Lambda N-\Sigma N$ coupling and the strengths of the $S$-wave $YN$ interactions. We briefly comment on our ongoing analyses with electromagnetic probes. 
K.Miyagawa, H.Kamada, W.Gloeckle, H.Yamamura, T.Mart, C.Bennhold