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arXiv · hep-ex/0301025

Inclusive Charged Hadron Production in Two-Photon Collisions at LEP

L3 Collaboration
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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.

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L3 Collaboration. 2003-01-15. Inclusive Charged Hadron Production in Two-Photon Collisions at LEP. https://doi.org/10.1016/s0370-2693(03)00015-7

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