Measurement of the hadronic photon structure function F2 γ (x, Q2) in two-photon collisions at LEP
EUROPEAN PHYSICAL JOURNAL C(2003)
摘要
The hadronic photon structure function F-2(gamma)(x,Q(2)) is measured from data taken with the ALEPH detector at LEP. At centre-of-mass energies between roots=189 GeV and 207 GeV an integrated luminosity of 548.4 pb(-1) is analyzed in two ranges of Q(2) with [Q(2)] =17.3 GeV2 and 67.2 GeV2. Detector effects and acceptance are corrected for with a Tikhonov unfolding procedure. The results are compared to theoretical predictions and measurements from other experiments.
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关键词
structure function,bibliography,differential cross section,particle physics,parametrization,photon structure function,centre of mass
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