Inclusive Production of Charged Hadrons in Photon-Photon Collisions
arXiv:hep-ex/0612045 · doi:10.1016/j.physletb.2007.06.001
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.
arXiv comment20 pages, 4 figures, Submitted to Phys. Letts. B
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- Anomalous behavior of pion production in high energy particle collisions
- Hadronic photon-photon scattering at LEP
- The Gamma-Gamma Interaction : A Critical Test of the Standard Model