Hard-Photon Production and Tests of QED at LEP

Details Hard-Photon Production and Tests of QED at LEP Hard-Photon Production and Tests of QED at LEP

2000-02-14

arxiv.org/abs/hep-ex/0002036v1

Phys.Lett.B475:198-205,2000

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1016/S0370-2693(00)00082-4

The total and differential cross sections of the process e+e- -> n gamma with
n >= 2 are measured using data collected by the L3 experiment at centre-of-mass
energies of \sqrt{s}=183 and 189 GeV. The results are in agreement with the
Standard Model expectations. Limits are set on deviations from QED, contact
interaction cut-off parameters and masses of excited electrons.

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