Abstract
Characteristics of the reactions π − p → p + X and pp → p + X are compared at 205 GeV c . In the lower multiplicity final states significant differences are observed in the spectrum of M 2, the mass-squared of the produced system X. However, the inclusive reactions show remarkable similarities in the distribution of momentum transfer to the recoil proton and in the dependence on M 2 of the average charged multiplicity of X. Triple-Regge theory with PPP or PRR terms is found to correctly predict the ratio of the inclusive cross sections for 30 ≲ M 2 ≲ 120 GeV 2.
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