Electromagnetic nucleon form factors from QCD sum rules
作者： H Castillo , C.A Dominguez , M Loewe
DOI: 10.1088/1126-6708/2005/03/012
关键词:
摘要: The electromagnetic form factors of the nucleon, in space-like region, are determined from three-point function Finite Energy QCD Sum Rules. calculation is performed to leading order perturbation theory chiral limit, and non-perturbative power corrections. results for Dirac factor, F1(q2), very good agreement with data both proton neutron, currently accessible experimental region momentum transfers. This not case, though, Pauli factor F2(q2), which has a soft q2-dependence proportional quark condensate 0|q|0.
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