Fig. (11) (Color on line). Exotic meson masses. The SPES3 data [14, 8] are shown with solid red circles; the Dubna data [20] with empty purple crosses; the Lear data with p at rest [5] empty blue squares, the Lear data with p in movement [7] by blue star, the Uppsala data [13] with solid green triangles. The PDG masses [1] are also introduced, and are represented by black stars. See text.