Cross-sections from scalar field theory

A scalar quantum field theory method is used to calculate differential and total cross-sections for elastic and inelastic scattering in proton-proton collisions. When Mandelstam variables are used, the resulting formulas are simple and can be written in closed form. They display features very typical of elastic and inelastic scattering. The results show good agreement with total cross-section data for η meson production. Thus for this particular example, a simple scalar model can be used in place of a more complicated field theory with spin. (author)