Abstract : In this note we classify and illustrate the cross sections of the known reactions induced by ¯p+p, involving hadrons in final state, for which cross section data (even partial) exist and are of the [mb] level. The data may be used for evaluating counting rates and as a basis for selection methods, at the trigger level, too, of the reaction of interest (¯p + p ! e+ + e−, ¯p + p ! e+ + e− + 0), which cross section is of the order of [nb].
