Nonperturbative Gluon Radiation and Energy Dependence of Elastic Scattering

Abstract

The energy dependence of the total hadronic cross sections is caused by gluon bremsstrahlung which we treat nonperturbatively. It is located at small transverse distances about 0.3 fm from the valence quarks. The cross section of gluon radiation is predicted to exponentiate and rise with energy as s^Δ with Δ=0.17 +/- 0.01. The total cross section also includes a large energy independent Born term which corresponds to no gluon radiation. The calculated total cross section and the slope of elastic scattering are in good agreement with the data.

arXiv commentBased on the talk given by B.Z.K. at the Workshop QCD'2000, Villefranche-sur-Mer, January 3-7, 2000. Two references and few comments are added

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• Dispersive Approach to Power-Behaved Contributions in QCD Hard Processes
• Field strength correlators in full QCD
• Bremsstrahlung of a Quark Propagating through a Nucleus
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• QCD at large and short distances (annotated version)
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• Evidence for xi- and t-dependent damping of the Pomeron Flux in the proton
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