1999/09/28 by L. Tiator, Tiator, L., D. Drechsel +3
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Scientific Research and Discoveries #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9909068
10 pages LATEX including 5 postscript figures, Proc. of the Second Int. Conf. on Perspectives in Hadronic Physics, Trieste 1999
arxiv created 1999/09/28 · openalex publication_date 1999/09/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present predictions for the spin structure functions of the proton and the neutron in the framework of a unitary isobar model for one-pion photo- and electroproduction. Our results are compared with recent experimental data from SLAC. The first moments of the calculated structure functions fulfill the Gerasimov-Drell-Hearn and Burkhardt-Cottingham sum rules within an error of typically 5-10% for the proton. For the neutron target we find much bigger deviations, in particular the sum rule for I1(0)+I2(0) is heavily violated.