The Generalized Gerasimov-Drell-Hearn Integral and the Spin Structure of the Nucleon
High Energy Physics - Phenomenology
2009-10-31 v2 Nuclear Theory
Abstract
The spin structure functions g1 and g2 have been calculated in the resonance region and for small and intermediate momentum transfer. The calculation is based on a gauge-invariant and unitary model for one-pion photo- and electroproduction. The predictions of the model agree with the asymmetries and the spin sturcture functions recently measured at SLAC, and the first moments of the calculated spin structure functions fullfil the Gerasimov-Drell-Hearn and Burkhardt-Cottingham sum rules within an error of typically 5-10 %.
Keywords
Cite
@article{arxiv.hep-ph/9810480,
title = {The Generalized Gerasimov-Drell-Hearn Integral and the Spin Structure of the Nucleon},
author = {D. Drechsel and S. S. Kamalov and G. Krein and L. Tiator},
journal= {arXiv preprint arXiv:hep-ph/9810480},
year = {2009}
}
Comments
22 pages LATEX including 5 postscript figures, replaced with 2 new figures