Bjorken sum rule at low Q^2
High Energy Physics - Phenomenology
2009-11-07 v1
Abstract
A description of the generalized Gerasimov-Drell-Hearn sum rules for proton and neutron is suggested, using their relation to the Bjorken sum rule. The results support an earlier conjecture, that the structure function g_T features a smooth Q^2-dependence, while the structure function g_2 is changing rapidly, due to the elastic contribution to the Burkhardt-Cottingham sum rule. A possible violation of this later sum rule is briefly discussed.
Keywords
Cite
@article{arxiv.hep-ph/0207252,
title = {Bjorken sum rule at low Q^2},
author = {Jacques Soffer and Oleg V. Teryaev},
journal= {arXiv preprint arXiv:hep-ph/0207252},
year = {2009}
}
Comments
8 pages, 2 eps figures