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Contributions of vector meson photoproduction to the Gerasimov-Drell-Hearn sum rule

Q. Zhao·J. S. Al-Khalili·C. Bennhold
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Abstract

An improved version of a recently developed quark model approach to vector meson photoproduction is applied to the investigation of contributions of vector meson photoproduction to the Gerasimov-Drell-Hearn (GDH) sum rule. We find that the sum rule converges at a few GeV's. Contributions to the proton channel are found to be small while to the neutron are relatively large.

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Q. Zhao, J. S. Al-Khalili, C. Bennhold. 2002-01-17. Contributions of vector meson photoproduction to the Gerasimov-Drell-Hearn sum rule. https://doi.org/10.1103/physrevc.65.032201

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