Total Cross Sections and Event Properties from Real to Virtual Photons

[Christer Friberg]

Title: Total Cross Sections and Event Properties from Real to Virtual Photons

Author(s): Christer Friberg (Lund university, Sweden)

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.

Paper: hep-ph/0010264
Dated: Mon, 23 Oct 2000 08:18:47 GMT (24kb)
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
Report-no: LU TP 00-45

URL: http://arXiv.org/abs/hep-ph/0010264