Dynamical parton distributions revisited (original) (raw)
Abstract.
Dynamical parton densities, generated radiatively from valence-like inputs at some low resolution scale, are confronted with recent small-x data on deep inelastic and other hard scattering processes. It is shown that within theoretical uncertainties our previous (1994) dynamical/radiative parton distributions are compatible with most recent data and still applicable within the restricted accuracy margins of the presently available next-to-leading order calculations. Due to recent high precision measurements we also present an updated, more accurate, version of our (valence-like) dynamical input distributions. Furthermore, our perturbatively stable parameter-free dynamical predictions are extended to the extremely small-x region, \(10^{-8} \lesssim x \lesssim 10^{-5}\), relevant to questions concerning ultra-high-energy cosmic ray and neutrino astronomy.
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- Institut für Physik, Universität Dortmund, D-44221 Dortmund, Germany , , , , , , DE
M. Glück & E. Reya - Institut für Theoretische Physik, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany , , , , , , DE
A. Vogt
Authors
- M. Glück
- E. Reya
- A. Vogt
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Received: 22 June 1998 / Published online: 21 August 1998
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Glück, M., Reya, E. & Vogt, A. Dynamical parton distributions revisited.Eur. Phys. J. C 5, 461–470 (1998). https://doi.org/10.1007/s100529800978
- Issue date: September 1998
- DOI: https://doi.org/10.1007/s100529800978