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The Gari-Krümpelmann ͑GK͒ models of nucleon electromagnetic form factors, in which the , , and vector meson pole contributions evolve at high momentum transfer to conform to the predictions of perturbative QCD, was recently extended to include the width of the meson by substituting the result of dispersion relations for the pole and the addition of the Ј ͑1450͒ isovector vector meson pole. This extended model was shown to produce a good overall fit to all the available nucleon electromagnetic form-factor data. Since then new polarization data shows that the electric to magnetic ratios R p and R n obtained are not consistent with the older G Ep and G En data in their range of momentum transfer. The model is further extended to include the Ј

The extended Gari-Krümpelmann (GK) model of nucleon electromagnetic form factors, in which the ρ, ρ ′ , ω, ω ′ and φ vector meson pole contributions evolve at high momentum transfer to conform to the predictions of perturbative QCD (pQCD), was recently shown to provide a very good overall fit to all the nucleon electromagnetic form factor (emff) data, including the preliminary R p and R n polarization data available in 2002, but excluding the older G Ep and G En differential cross section data that was inconsistent with the R p and R n data. The recently published final version of the polarization data of the electric to magnetic ratio R p differs little from the preliminary values for the former, but the new values of R n are midway between the preliminary values and those inferred from the differential cross section data and the Rosenbluth separation. A new fit of the parameters of the same model has been made with the final R p and R n data replacing the preliminary values and the addition of some new R n and

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