Low Mass Exotic Baryons: Myth or Reality ?

B. Tatischeff

Using mainly $\vec{p}$ p $\to$ p ${\pi }^{+}X$ and $\vec{p}$ p $\to$ p${}_f$~p${}_s$ X reactions, narrow baryonic structures were observed in the mass range 950$\le$ M $\le$ 1800 MeV.