Does the Sigma(1580)3/2- resonance exist?

Crystal Ball Collaboration, J. Olmsted, S. Prakhov +34

Precise new data for the reaction $K^{-}p\to {\pi }^0\Lambda$ are presented in the c.m. energy range 1565 to 1600 MeV. Our analysis of these data sheds new light on claims for the $Σ(1580){3…