Nonperturbative Gluon Radiation and Energy Dependence of Elastic Scattering

B. Z. Kopeliovich; I. K. Potashnikova; B. Povh; E. Predazzi

doi:10.1103/PhysRevLett.85.507

Nonperturbative Gluon Radiation and Energy Dependence of Elastic Scattering

B. Z. Kopeliovich, I. K. Potashnikova, B. Povh, and E. Predazzi

Phys. Rev. Lett. 85, 507 – Published 17 July 2000

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 $Δ = 0.17 \pm 0.01$ . 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.

Received 24 February 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.507

Authors & Affiliations

B. Z. Kopeliovich^1,2, I. K. Potashnikova^1,2, B. Povh¹, and E. Predazzi³

¹Max-Planck Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany
²Joint Institute for Nuclear Research, Dubna, 141980 Moscow Region, Russia
³Università di Torino and INFN, Sezione di Torino, I-10125 Torino, Italy

Two-scale hadronic structure and elastic $p p$ scattering: Predicted and measured

B. Z. Kopeliovich, I. K. Potashnikova, and B. Povh

Phys. Rev. D 86, 051502(R) (2012)

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Vol. 85, Iss. 3 — 17 July 2000

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