Measurement of Meson Cross Sections at HERA and Determination of the Gluon Density in the Proton using NLO QCD H1 Collaboration

نویسندگان

  • C. Adloff
  • A. Babaev
  • J. Bähr
  • P. Baranov
  • M. Charlet
  • B. Clerbaux
  • R. Demirchyan
  • F. Eisele
  • L. Favart
  • A. Fedotov
  • S. Ghazaryan
چکیده

With the H1 detector at the collider HERA, meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers GeV and in photoproduction at energies around GeV and GeV. Next-to-Leading Order QCD calculations are found to describe the differential cross sections within theoretical and experimental uncertainties. Using these calculations, the NLO gluon momentum distribution in the proton, !#"$ % '& , has been extracted in the momentum fraction range

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تاریخ انتشار 1998