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Dynamical parton distributions of the proton and small-x physics

  • Theoretical Physics
  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

The perturbative properties of parton distributions generated radiatively from a valence-like input at some low resolution scale are discussed with the aim of explaining the physical aspects underlying the reliability of the predicted distributions in the small-x region. Aspects of higher-twist (shadowing) effects as well as small-x resummations are discussed. Utilizing recent improved data atx≳10−2 and a factorization scheme in which the heavy quarksc, b, ..., arenot entailed among the intrinsic (massless) parton distributions, we readjust our valencelike input and provide parametrizations of the slightly modified dynamical LO and NLO\((\overline {MS} ,DIS)\) predictions for parton distributions.

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Authors and Affiliations

  1. Institut für Physik, Universität Dortmund, D-44221, Dortmund, Germany

    M. Glück & E. Reya

  2. Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, D-22603, Hamburg, Germany

    A. Vogt

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  1. M. Glück
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  2. E. Reya
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  3. A. Vogt
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On leave of absence from Sektion Physik, Universität München, D-80333 Munich, Germany

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Glück, M., Reya, E. & Vogt, A. Dynamical parton distributions of the proton and small-x physics. Z. Phys. C - Particles and Fields 67, 433–447 (1995). https://doi.org/10.1007/BF01624586

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  • DOI: https://doi.org/10.1007/BF01624586

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