Model for elastic scattering at wide angle

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Abstract
In a model for wide-angle elastic scattering each of the hadrons involved is pictured as being composed of a number of constituents. Each constituent of one hadron scatters at wide angle on at least one constituent of the other, in such a way that all the constituents remain near their mass shell. The resulting differential cross section is small because of the limited phase space available: It is required that all the constituents scatter through nearly the same angle, so that they can readily recombine to form the final-state hadrons. The differential cross sections calculated from the model have energy dependences that do not agree with those which would be obtained from simple dimensional counting, and indeed the mechanism of the model can dominate over other mechanisms that have been proposed for wide-angle scattering. The model is confronted with existing experimental data.

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