English

QCD analysis of $F_2^{\gamma}(x,Q^2)$: an unconventional view

High Energy Physics - Phenomenology 2009-10-31 v1

Abstract

Elements of the alternative approach to hard collisions of photons, proposed recently by the author, are reviewed, with particular attention to QCD analysis of F2γF^{\gamma}_2. This approach is based on clear separation of genuine QCD effects from those of pure QED origin and does not rely on the assumption that parton distribution functions of the photon behave as α/αs\alpha/\alpha_s. It differs significantly from the conventional one, as illustrated on the example of charm contribution to F2γF_{2}^{\gamma}, recently measured at LEP.

Keywords

Cite

@article{arxiv.hep-ph/0010309,
  title  = {QCD analysis of $F_2^{\gamma}(x,Q^2)$: an unconventional view},
  author = {Jiri Chyla},
  journal= {arXiv preprint arXiv:hep-ph/0010309},
  year   = {2009}
}

Comments

6 pages, Latex using aipproc macros, 2 eps figures