Abstract

The density of shower particles in pseudorapidity space from proton-emulsion collisions at 200, 300 and 400 GeV/ c is essentially energy independent but exhibits a linear growth with N h (the number of heavy prongs), different in different parts of phase space. Deviations occur for the largest values of N h and comparisons to the 67 GeV/ c data show a rise in the density of particles in the central region between Serpukhov and FNAL energies. Special attention is given to the new 400 GeV/ c data and some correlations between different parts of phase space are discussed.

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