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Dijet photoproduction of massless charm jets at next-to-leading order of QCD

  • Michael KlasenEmail author
  • Gustav Kramer
Regular Article - Theoretical Physics

Abstract

We compute the charm dijet photoproduction cross section at next-to-leading order of QCD in the zero-mass variable flavour number scheme, i.e. with active charm quarks in the proton and photon. The results are compared to recent measurements from the ZEUS experiment at HERA. The predictions for various distributions agree with the data, in particular for large momentum fractions of the partons in the photon, where direct photon processes dominate. At low momentum fractions, the predictions are quite sensitive to the charm content in the photon. The experimental data are shown to favour parameterizations with a substantial charm-quark density such as the one proposed by Cornet et al.

Keywords

Charm Quark ZEUS Collaboration Dijet Cross Section ZEUS Data Dijet Photoproduction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2011

Authors and Affiliations

  1. 1.Institut für Theoretische PhysikWestfälische Wilhelms-Universität MünsterMünsterGermany
  2. 2.II. Institut für Theoretische PhysikUniversität HamburgHamburgGermany

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