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Measurement of hadron and lepton-pair production in e+e- collisions at \(\sqrt{s}=192-208 GeV\) at LEP

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Abstract

Hadron production and lepton-pair production in e+e- collisions are studied with data collected with the L3 detector at LEP at centre-of-mass energies \(\sqrt{s}=192-208 GeV\). Using a total integrated luminosity of 453 pb-1, 36057 hadronic events and 12863 lepton-pair events are selected. The cross sections for hadron production and lepton-pair production are measured for the full sample and for events where no high-energy initial-state-radiation photon is emitted prior to the collisions. Lepton-pair events are further investigated and forward-backward asymmetries are measured. Finally, the differential cross sections for electron-positron pair-production is determined as a function of the scattering angle. An overall good agreement is found with Standard Model predictions.

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The L3 Collaboration. Measurement of hadron and lepton-pair production in e+e- collisions at \(\sqrt{s}=192-208 GeV\) at LEP. Eur. Phys. J. C 47, 1–19 (2006). https://doi.org/10.1140/epjc/s2006-02539-1

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  • DOI: https://doi.org/10.1140/epjc/s2006-02539-1

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