Abstract
An experimental study has been made of the elastic and the inelastic interactions produced by 28 GeV proton and 16.2 GeV negative pion beams with free hydrogen nuclei in nuclear emulsions. In the proton and the pion beams, 862 and 503 events were found respectively by following “along the track” scanning technique. Out of these, 10 proton and 4 pion events were classified as p-p and π-p (free hydrogen nuclei) elastic interactions. The elastic cross section values are 9.31 ± 2.94 mb and 5.4 ±2.7 mb respectively. While the total inelastic cross sections for both types of interactions (i.e. pp and πp) vary slowly with energy, the partial inelastic cross sections were found to be strongly energy dependent. Finally, the correlation indicated (by our experimental data) between the elastic cross section, total cross section and the transverse momentum of the secondary particles produced in the interactions is discussed and is compared with the theory.
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