Extending the QCD leading logs up to reggeon field theory

L. V. Gribov*, E. M. Levin, M. G. Ryskin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The deep inelastic structure function D(ω, q2) is calculated in the leading log approximation for ( Nβ2 π22S (q02) 1n ω < 0.84 1n( 1 αS(q2)). For larger ω up to ( Nβ2 π22S) 1n ω < 0.42 α2S (q02) α2S(q2) the influence of reggeon cuts proves to slow down the growth of the structure function. A reggeon diagram technique is developed, and D is calculated up to a pre-exponent O(1), leading to D(ω, q2) ∝ q2 for ( Nβ2 π22S(q2 0) 1n ω ≅ 0.42 α 2S(q02) αS2(q2). By assuming the reggeon diagrams when ω is still greater, one can expect to obtain a strong coupling behaviour: D(ω, q2) ∝ q2(ln ω)η (η <2).

Original languageEnglish
Pages (from-to)185-189
Number of pages5
JournalPhysics Letters B
Issue number3
StatePublished - 7 May 1981
Externally publishedYes


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