THE CKMT Model and the Theoretical Description of the Caldwell-plot
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The CKMT model for the nucleon structure function F_2 is in good agreement with the HERA data at low and moderate Q^2. The fit to the same data obtained with a modified version of the model in which a logarithmic dependence on Q^2 has been included is also discussed. Finally, we show how the parametrization of the CKMT model for the nucleon structure function F_2 describes the HERA data when presented in the Caldwell-plot as the behavior of the logarithmic slopes of F_2 vs x and Q^2.
15 pages (Latex), 6 figures. Talk presented at the XVII Autumn School on QCD: Perturbative or Nonperturbative?, 29 September-4 October 1999, IST, Lisbon (Portugal) (submitted to the Proceedings)
15 pages (Latex), 6 figures. Talk presented at the XVII Autumn School on QCD: Perturbative or Nonperturbative?, 29 September-4 October 1999, IST, Lisbon (Portugal) (submitted to the Proceedings)