1997/01/04 by H.‐W. Hammer, Hammer, H. -W., D. Drechsel +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.nucl-th/9701008
openalex publication_date 1997/01/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Using the Gerasimov-Drell-Hearn sum rule and experimental total cross sections for photoproduction of η, K and ϕ mesons on the proton, we obtain upper bounds for the contribution of strange quarks to the anomalous magnetic moment of the proton, |κs| ≤ 0.20 κp. The proposed experiments to measure the spin-dependence of the absorption cross section are expected to lower these bounds considerably. The existing data on η production and phenomenological models for K production agree with a negative sign for κs.