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Title

Study of multiphoton final states and tests of QED in e+e collisions at √s up to 209 GeV

CollaborationWith : Achard, Pablo / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Delmeire, Evelyne / Echenard, Bertrand / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Malgeri, Luca / Natale, Sonia / Pohl, Martin
Published in Physics Letters. B. 2002, vol. 531, no. 1-2, p. 28-38
Abstract The process e+e−→nγ with n⩾2 is studied at centre-of-mass energies ranging from √s=192 to 209 GeV. The data sample corresponds to a total integrated luminosity of 427 pb−1. The total and differential cross sections are found to be in agreement with the QED expectations. Using all the data collected with the L3 detector above the Z pole, limits on deviations from QED, excited electrons, contact interactions, extra space dimensions and excited spin-3/2 leptons are set.
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L3 COLLABORATION. Study of multiphoton final states and tests of QED in e+e collisions at √s up to 209 GeV. In: Physics Letters. B, 2002, vol. 531, n° 1-2, p. 28-38. https://archive-ouverte.unige.ch/unige:43266

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Deposited on : 2014-12-12

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