2004/08/31 by R. M. Godbole, A. Grau, G. Pancheri +1 · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.72.076001
published as Phys.Rev.D72:076001,2005 · 30 pages, 6 figures. Version accepted for publication in Physical Review D. Additional section with explanatory material added making the paper more self contained and two figures changed to have a complete summary of the available accelerator data
arxiv created 2005/09/28 · openalex publication_date 2005/10/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
An impact parameter representation for soft gluon radiation is applied to obtain both the initial decrease of the total cross section (\ensuremathσtot) for proton-proton collisions as well as the later rise of \ensuremathσtot with energy for both pp and pp. The nonperturbative soft part of the eikonal includes only limited low energy gluon emission and leads to the initial decrease in the proton-proton cross section. On the other hand, the rapid rise in the hard, perturbative jet part of the eikonal is tamed into the experimentally observed mild increase by soft gluon radiation whose maximum energy rises slowly with energy.