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Measurement of the photon structure function at high Q2 at LEP

CollaborationWith : Achard, Pablo / Ambrosi, Giovanni / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Muheim, Franz / Pohl, Martin / Produit, Nicolas / Sciarrino, Deborah
Published in Physics Letters. B. 2000, vol. 483, no. 4, p. 373-386
Abstract The structure functions of real and virtual photons are derived from cross section measurements of the reaction e+e−→e+e−+ hadrons at LEP. The reaction is studied at √s≈91 GeVwith the L3 detector. One of the final state electrons is detected at a large angle relative to the beam direction, leading to Q2 values between 40 GeV2 and 500 GeV2. The other final state electron is either undetected or it is detected at a four-momentum transfer squared P2 between 1 GeV2 and 8 GeV2. These measurements are compared with predictions of the Quark Parton Model and other QCD based models.
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L3 COLLABORATION. Measurement of the photon structure function at high Q2 at LEP. In: Physics Letters. B, 2000, vol. 483, n° 4, p. 373-386. doi: 10.1016/S0370-2693(00)00587-6 https://archive-ouverte.unige.ch/unige:47336

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Deposited on : 2015-02-27

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