Measurement of the Photon Structure Function F2gamma with the L3 Detector at LEP

L3 COLLABORATION, P. ACHARD, M.T.DOVA ET AL

PHYSICS LETTERS B

ELSEVIER

Año: 2005 vol. 622 p. 249 - 264

0370-2693

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 F2gamma . The full high-energy and high-luminosity data set, collected with the L3 detector at centre-of-mass energies 189-209GeV, corresponding to an integrated luminosity of 608/pb is used. The Q^2 range 11-34GeV^2 and the x range 0.006-0.556 are considered. The data are compared with recent parton density functions.