Quark-antiquark exchange in γ*γ* scattering

Jochen Bartels, Michael Lublinsky

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We calculate the high energy behavior of quark-antiquark exchange in γ*γ* elastic scattering by summing, to all orders, the leading double logarithmic contributions of the QCD ladder diagrams. Motivation comes from the LEP data for σtot γ*γ* which indicate the need for secondary reggeon exchange. We show that, for large photon virtualities, this exchange is calculable in pQCD. This applies, in particular, to parts of the LEP kinematic region.

Original languageEnglish
Pages (from-to)1807-1838
Number of pages32
JournalJournal of High Energy Physics
Issue number9
StatePublished - 1 Sep 2003
Externally publishedYes


  • NLO Computations
  • QCD


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