Total Cross Sections and Event Properties from Real to Virtual Photons
Abstract
A model for total cross sections with virtual photons is presented. In particular gamma*-p and gamma*-gamma* cross sections are considered. Our approach extends on a model for photoproduction, where the total cross section is subdivided into three distinct event classes: direct, VMD and anomalous. With increasing photon virtuality, the latter two decrease in importance. Instead Deep Inelastic Scattering dominates, with the direct class being the O(alpha_s) correction thereof. Hence, the model provides a smooth transition between the two regions. By the breakdown into different event classes, one may aim for a complete picture of all event properties.
Keywords
Cite
@article{arxiv.hep-ph/0010264,
title = {Total Cross Sections and Event Properties from Real to Virtual Photons},
author = {Christer Friberg},
journal= {arXiv preprint arXiv:hep-ph/0010264},
year = {2009}
}
Comments
1+5 pages, LaTeX2e, 2 eps figures, to appear in the Proceedings of the International Conference on the Structure and Interactions of the Photon; Photon 2000, 26th-31st August 2000, Ambleside, England