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arXiv · hep-ex/0612045

Inclusive Production of Charged Hadrons in Photon-Photon Collisions

The OPAL collaboration
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Abstract

The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies from 183 to 209 GeV. The differential cross-sections as a function of the transverse momentum and the pseudorapidity of the hadrons are compared to theoretical calculations of up to next-to-leading order (NLO) in the strong coupling constant alpha{s}. The data are also compared to a measurement by the L3 Collaboration, in which a large deviation from the NLO predictions is observed.

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The OPAL collaboration. 2006-12-19. Inclusive Production of Charged Hadrons in Photon-Photon Collisions. https://doi.org/10.1016/j.physletb.2007.06.001

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