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The electroproduction of eta and eta' mesons on the proton and the neutron isinvestigated at tree level within the framework of U(3) chiral perturbationtheory. In addition to the Born terms low-lying resonances such as the vectormesons and J^P= 1/2^+, 1/2^- baryon resonances are included explicitly andtheir contributions are calculated. Results for the separated differentialcross sections are presented.Comment: 24 pages, 7 figure

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Threshold η and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>electroproduction off nucleons

Threshold η andη′electroproduction off nucleons