High energy experiments

Reports on the experimental progress observed during the last year at high energy accelerators. This energy range can be separated into two regions: (i) high energy, well above the resonance region, ranging from approximately 10 to 79 GeV, experimenting with a variety of particles like pi /sup +or-/, K/sup +or-/, p, p, n, K degrees and most recently with hyperons; (ii) very high energy, up to 2000 GeV, until last year reserved to cosmic rays, now accessible with proton storage rings. This region is restricted to the study of pp collisions and it is limited by rates to the investigation of cross sections >or approximately=10/sup -34/ cm/sup 2/. Some elementary but representative processes which have been studied in the full energy region are covered. These are: particle production (inclusive reactions); elastic scattering; and total cross section. (23 refs).