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Small-X behaviour of the non-singlet structure function

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Zeitschrift für Physik C Particles and Fields

Abstract

The smallx behaviour of the non-singlet structure function is studied within the double logarithmic approximation (DLA) of perturbative QCD. Since there is neitherk T norθ ordering in the ladder Feynman graphs, the predicted non-singlet quark densities for the HERA kinematical range (x∼10−3) exceed the values calculated from the small-x approximation of the conventional Altarelli-Parisi evolution by a factor up to ten.

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Authors and Affiliations

  1. Petersburg Physical-Technical Institute, 194021, St. Petersburg, Russia

    B. I. Ermolaev

  2. Petersburg Nuclear Physics Institute, Russian Academy of Science, Gatchina, 188350, St. Petersburg District, Russia

    S. I. Manayenkov & M. G. Ryskin

Authors
  1. B. I. Ermolaev
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  2. S. I. Manayenkov
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  3. M. G. Ryskin
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Additional information

Supported in part by the grant R26000 from the International Science Foundation and in part by Volkswagen Stiftung

Supported in part by the Soros grant awarded by the International Science Foundation

Supported in part by the grant INTAS-93-0079

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Ermolaev, B.I., Manayenkov, S.I. & Ryskin, M.G. Small-X behaviour of the non-singlet structure function. Z. Phys. C - Particles and Fields 69, 259–267 (1995). https://doi.org/10.1007/BF02907406

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  • DOI: https://doi.org/10.1007/BF02907406

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