Pole position of $\Lambda (1405)$ measured in $d(K^{-},n)\pi \Sigma$ reactions

PARC E31 Collaboration, S. Aikawa, S. Ajimura +74

We measured a set of ${\pi }^{\pm }{\Sigma }^{\mp }$, ${\pi }^0{\Sigma }^0$, and ${\pi }^{-}{\Sigma }^0$ invariant mass spectra below and above the $\bar{K}N$ mass threshold in $K^{-}$-induced reactions on deuteron. We deduced th…