Measurement of the photon structure function F2γ with the L3 detector at LEP
2005
Abstract The e + e − → e + e − hadrons reaction, where one of the two electrons is detected in a low polar-angle calorimeter, is analysed in order to measure the hadronic photon structure function F 2 γ . The full high-energy and high-luminosity data set, collected with the L3 detector at centre-of-mass energies 189 GeV ⩽ s ⩽ 209 GeV , corresponding to an integrated luminosity of 608 pb −1 is used. The Q 2 range 11 GeV 2 ⩽ Q 2 ⩽ 34 GeV 2 and the x range 0.006 ⩽ x ⩽ 0.556 are considered. The data are compared with recent parton density functions.
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