Inclusive Charged Hadron Production in Two-Photon Collisions at LEP
High Energy Physics - Experiment
2012-08-27 v1
Abstract
Inclusive charged hadron production, e+e- -> e+e- h+- X, is studied using 414 pb-1 of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 202 GeV. Single particle inclusive differential cross sections are measured as a function of the particle transverse momentum, pt, and pseudo-rapidity, eta. For p_t < 1.5 GeV, the data are well described by an exponential, typical of soft hadronic processes. For higher pt, the onset of perturbative QCD processes is observed. The pi+- production cross section for pt > 5 GeV is much higher than the NLO QCD predictions.
Cite
@article{arxiv.hep-ex/0301025,
title = {Inclusive Charged Hadron Production in Two-Photon Collisions at LEP},
author = {L3 Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0301025},
year = {2012}
}