Dispersion Approach to Pion Photoproduction and GDH Sum Rule

6533b833fe1ef96bd129ca84

RESEARCH PRODUCT

Dispersion Approach to Pion Photoproduction and GDH Sum Rule

subject

Nuclear physics Physics Particle physics Pion Amplitude Dispersion relation Nuclear Theory Dispersion (optics)High Energy Physics::Experiment Sum rule in quantum mechanics Nuclear Experiment Constant (mathematics)Resonance (particle physics)

description

Pion photoproduction has been analyzed in the framework of dispersion relations at constant t. The results for S-wave pion production at threshold and P-wave production in the Δ (1232) resonance region are presented and compared to the data and theoretical expectations. The predictions for the GDH sum rule are shown to be very sensitive to the threshold S-wave amplitude.

year	journal	country	edition	language
1999-01-01

https://doi.org/10.1007/978-3-7091-6800-4_31

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