QCD Phase Shifts and Rising Total Cross-Sections
High Energy Physics - Phenomenology
2007-05-23 v2 High Energy Physics - Theory
Abstract
An attempt is made in QCD to explain the growth of total cross-sections with energy, without violating the Froissart bound. This is achieved by computing the phase shifts of elastic scatterings of partons rather than their amplitudes. To render that possible a general formalism of phase-shifts in QCD is developed. Computed to two-loop order, agreements with hadronic and virtual-photon total cross-sections are quite satisfactory. Predications for the slower rate of growth at higher energies are also presented.
Cite
@article{arxiv.hep-ph/9804463,
title = {QCD Phase Shifts and Rising Total Cross-Sections},
author = {C. S. Lam},
journal= {arXiv preprint arXiv:hep-ph/9804463},
year = {2007}
}
Comments
13 pages with three postscript figures, composed in the Revtex preprint format. Some misprints of a previous version have been corrected here