Dispersion Relation for the Nucleon Electromagnetic Form Factors

Details Dispersion Relation for the Nucleon Electromagnetic Form Factors Dispersion Relation for the Nucleon Electromagnetic Form Factors

2010-01-31

arxiv.org/abs/1002.0103v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

16pages 9figures

Scientific paper

Elastic electromagnetic form factors of nucleons are investigated both for the time-like and the space-like momentums by using the unsubtracted dispersion relation with QCD constraints. It is shown that the calculated form factors reproduce the experimental data reasonably well; they agree with recent experimental data for the neutron magnetic form factors for the space-like data obtained by the CLAS collaboration and are compatible with the ratio of the electric and magnetic form factors for the time-like momentum obtained by the BABAR collaboration.

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