On the nature of the Lambda(1405) as a superposition of two states

We use recent data on the $K^{-}p\to {\pi }^0{\pi }^0{\mathrm{\Sigma }}^0$ reaction with the ${\pi }^0{\mathrm{\Sigma }}^0$ mass distribution of forming the $\mathrm{\Lambda }(1405)$ with a peak at 1420 MeV and a relatively narrow width of $\mathrm{\Gamma }=38$ MeV, together with those of the ${\pi }^{-}p\to K^0\pi \mathrm{\Sigma }$ reaction to show that there are two $\mathrm{\Lambda }(1405)$ states instead of one as so far assumed.