High energy predictions for ¯pp andpp elastic scattering and total cross sections

Abstract

Predictions for thes behavior at high energies are made for¯pp andpp: the differential elastic scattering cross section dσ/dt vs.t, the squared 4-momentum transfer; the total elastic cross sectionσel; the nuclear slope parameterB; the curvature parameterC; ϱ, the ratio of the real to the imaginary portion of the forward scattering amplitude; and the total cross sectionσtot. A hybrid approach is employed in order to gain reliable predictions. The energy dependence ofϱ andσtot is fixed by fittingpp and¯pp experimental data forϱ andσtot from 15 GeV toS¯ppS energies, using analytic amplitudes. The other quantities are found using the Chou-Yang model, where the total, cross section is fixed from the fit.