Total Cross Section in gamma gamma Collisions at LEP
High Energy Physics - Experiment
2012-08-27 v1
Abstract
The reaction e+e- -> e+e- gamma* gamma* -> e+e- hadrons for quasi-real photons is studied using data from root(s) = 183 GeV up to 202 GeV. Results on the total cross sections sigma(e+e- -> e+e- hadrons) and sigma(+e- gamma* gamma* -> e+e- hadrons) are given for the two-photon centre-of-mass energies 5 GeV < Wgammagamma < 185 GeV. The total cross section of two real photons is described by a Regge parametrisation. We observe a steeper rise with the two-photon centre-of-mass energy as compared to the hadron-hadron and the photon-proton cross sections. The data are also compared to the expectations of different theoretical models.
Cite
@article{arxiv.hep-ex/0102025,
title = {Total Cross Section in gamma gamma Collisions at LEP},
author = {L3 Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0102025},
year = {2012}
}