Electromagnetic investigations of nucleon resonances and sum rules

6533b820fe1ef96bd127986d

RESEARCH PRODUCT

Electromagnetic investigations of nucleon resonances and sum rules

subject

Physics Nuclear and High Energy Physics Particle physics Unitarity Nuclear Theory Observable Spin structure Nuclear physics Pion Polarizability Dispersion relation High Energy Physics::Experiment Nuclear Experiment Nucleon Spin-½

description

Abstract Pion photoproduction is analyzed by dispersion relations at fixed t . The results for s-wave production at threshold and p-wave production in the Δ(1232) resonance region are compared to the experimental data. These investigations are extended to the case of pion electroproduction in the framework of the Unitary Isobar Model. Recent developments to explore the spin structure of the nucleon by double-polarization observables are summarized, and new results for the spin polarizability, the Gerasimov-Drell-Hearn and related sum rules are presented.

year	journal	country	edition	language
2000-03-01	Progress in Particle and Nuclear Physics

https://doi.org/10.1016/s0146-6410(00)00066-1

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