$\Lambda \Lambda$-$\Xi N$-$\Sigma \Sigma$ coupling in ${}_{\Lambda \Lambda }^6$He with the Nijmegen soft-core potentials

Taiichi Yamada

The $\Lambda \Lambda$-$\Xi N$-$\Sigma \Sigma$ coupling in ${}_{\Lambda \Lambda }^6$He is studied with the [$\alpha$ + $\Lambda$ + $\Lambda$] + [$\alpha$ + $\Xi$ + $N$] + [$\alpha$ + $\Sigma$ + $\Sigma$] model, where the $\alpha$ particle is assumed as a frozen cor…