Abstract
We consider the QCD sum rules approach for hadron form factors in infrared region 0≤Q2<1 GeV2. The QCD sum rules in external variable field are formulated. As an example this method is used to calculate proton and nucleon magnetic form factors. The detailed calculation of the nucleon polarization operator in external variable electromagnetic field is done. The obtained form factors (proton and neutron) are in a good agreement with experimental ones.
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