Summary
A general method is given for studying photoabsorption sum rules in the constituent-quark model with relativistic corrections. Kinematic or recoil contributions are properly taken into account. The model gives the standard expression for theσ −2 sum rule. Numerically relevant corrections are obtained for theσ E10 (TRK) sum rule.
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De Sanctis, M. Relativistic and retardation corrections to photon-nucleon absorption sum rules in the constituent-quark model. Nuov Cim A 109, 415–424 (1996). https://doi.org/10.1007/BF02731090
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DOI: https://doi.org/10.1007/BF02731090