Hadronic sizes and observables in high-energy scattering

Details Hadronic sizes and observables in high-energy scattering Hadronic sizes and observables in high-energy scattering

1997-05-09

arxiv.org/abs/hep-ph/9705278v1

Phys.Rev. D56 (1997) 179-183

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, using Revtex.style . 2 ps figures. To be published in Physical Review D , July 1997

Scientific paper

10.1103/PhysRevD.56.179

The functional dependence of the high-energy observables of total cross section and slope parameter on the sizes of the colliding hadrons predicted by the model of the stochastic vacuum and the corresponding relations used in the geometric model of Povh and H\"ufner are confronted with the experimental data. The existence of a universal term in the expression for the slope, due purely to vacuum effects, independent of the energy and of the particular hadronic system, is investigated. Accounting for the two independent correlation functions of the QCD vacuum, we improve the simple and consistent description given by the model of the stochastic vacuum to the high-energy pp and pbar-p data, with a new determination of parameters of non-perturbative QCD. The increase of the hadronic radii with the energy accounts for the energy dependence of the observables.

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