Total cross sections and event properties from real to virtual photons

Christer Friberg, Torbjörn Sjöstrand

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A model for total cross sections with virtual photons is presented. In particular γ*p and γ*γ* 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 script O sign(αs) 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.

    Original languageEnglish
    JournalJournal of High Energy Physics
    Volume4
    Issue number9 PART A
    Publication statusPublished - 2000 Dec 1

    Subject classification (UKÄ)

    • Subatomic Physics

    Free keywords

    • Deep Inelastic Scattering
    • LEP HERA and SLC Physics
    • Phenomenological Models
    • QCD

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