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The long-standing discrepancy between the Gerasimov-Drell-Hearn sum rule andthe analysis of pion photoproduction multipoles is greatly diminished by use ofs-wave multipoles that are in accord with the predictions of chiralperturbation theory and describe the experimental data in the threshold region.The remaining difference may be due to contributions of channels with morepions and/or heavier mesons whose contributions to the sum rule remain to beinvestigated by a direct measurement of the photoabsorption cross sections.Comment: 9 pages, latex, 1 figure, to appear in Phys. Rev.

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Gerasimov-Drell-Hearn sum rule and the single-pion photoproduction multipole<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>E</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msub></mml:mrow></mml:math>close to threshold

Gerasimov-Drell-Hearn sum rule and the single-pion photoproduction multipoleE0+close to threshold