Simple pion production in nucleon-nucleon collisions in the Bev energy region is studied by
means of the picture due to Weiszäcker-Williams (peripheral interaction model) and in the (3 …

Single pion production in nucleon-nucleon collisions is calculated in the one-pion exchange
approximation. All the possible diagrams of this kind are calculated in the≪ pole≫ …

The isobaric nucleon model of pion production in nucleon-nucleon and pion-nucleon
collisions has been extended to include the effect of the higher resonances in the isotopic …

The single production of pions occurring in pion-nucleon collisions at incident pion energies
below∼ 1.5 Bev has been considered in terms of the inelastic excitation of the nucleon to …

A pion exchange model for NN pion production from threshold up to about 6 GeV/c is
constructed. In contrast to other models of this type the full information from πN scattering is …

Based on well established models for nucleon–nucleon and pion–nucleon scattering a
model for pion production in proton–proton collisions is developed. The∆(1232) is taken into …

A study of antiproton-proton collisions at 3− 4 BeV c indicates that about 25%(19 mb) of the
total interaction cross section can be attributed to pion production without annihilation. The …

FIG. 1. Angular distributions of fast~ particles. 0= barycentric angle between direction of
produced and of incident pion. Solid line refers to neutron re-action, broken line to proton …

The results of a hypothetical analysis of pion production at 1.4 Bev in strong pion-pion
interactions are given. From this investigation at 1.4 Bev, results were obtained for the …

The distorted-wave Born approximation, justified in a previous study, is applied to π 0
production in proton-proton collisions. The production amplitude is studied as a function of …