Abstract
Measurements of the inelastic cross sections for hadron-iron nucleus interactions over the hadron energy range of 100–3000 GeV are reported. The cross sections were obtained from the observed attenuation of unaccompanied cosmic ray hadron beams inside an iron calorimeter containing wide-gap spark chambers. A transition radiation detector was used to measure directly the pion content of the hadron beam. The hadron-iron inelastic cross section is seen to increase by (12 ± 4)% over the energy interval 150 GeV to 1250 GeV. Using a value of 1.26 for the ratio σ p-Fe/ σ π- Fe derived from Glauber theory we deduce that the pion-iron inelastic cross section increases by (7.7 ± 3.4)% over this energy interval.
Published Version
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