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Total Hadronic Cross-Section for Photon-Photon Interactions at LEP

Frank Waeckerle
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Abstract

The total hadronic cross-section for the interaction of real photons is extracted from a measurement of the cross-section of the process e+e->e+e- + hadrons using a luminosity function for the photon flux and form factors for extrapolating to Q**2=0. The data was taken with the OPAL detector at LEP at e+e- centre-of-mass energies of 161 GeV and 172 GeV. In the energy range 10 < W < 110 GeV the total hadronic photon-photon cross-section is consistent with the Regge behaviour of the total cross-section observed in γp and hadron-hadron interactions.

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Frank Waeckerle. 1997-10-09. Total Hadronic Cross-Section for Photon-Photon Interactions at LEP. https://doi.org/10.1016/s0920-5632(98)00369-7

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