Measurement of the Photon Structure Function at High Q^2 at LEP
High Energy Physics - Experiment
2012-08-27 v1
Abstract
The structure functions of real and virtual photons are derived from cross section measurements of the reaction e^+e^ -> e^+e^- + hadrons at LEP. The reaction is studied at \sqrt{s} ~ 91 GeV with the L3 detector. One of the final state electrons is detected at a large angle relative to the beam direction, leading to Q^2 values between 40 GeV^2 and 500 GeV^2. The other final state electron is either undetected or it is detected at a four-momentum transfer squared P^2 between 1 GeV^2 and 8 GeV^2. These measurements are compared with predictions of the Quark Parton Model and other QCD based models.
Keywords
Cite
@article{arxiv.hep-ex/0004005,
title = {Measurement of the Photon Structure Function at High Q^2 at LEP},
author = {L3 Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0004005},
year = {2012}
}