- Conference date: 1992
- Location: Newport News, Virginia (USA)
We study contributions from baryon resonance excitations to the Q 2 dependence of the Gerasimov‐Drell‐Hearn sum rule. The results indicate that the sum rule at small Q 2 is largely saturated by contribution from the lower mass resonant states. We find a strong Q 2 dependence of the resonant contributions, leading even to a sign change of the sum rule integral at Q 2∼0.8 GeV2. The global Q 2 dependence indicates discrepencies to the interpretation of the EMC polarized structure function data on A p 1 in the resonance region, which can be largely attributed to the elimination of the P 33(1232) resonance from the EMC analysis.
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