The fraction of the nucleon spin that is carried by the quarks, ΔΣ, is computed in lattice QCD with dynamical staggered fermions. We obtain the value ΔΣ=0.18±0.02.
@article{arxiv.hep-lat/9211038,
title = {The Spin Content of the Nucleon},
author = {R. Altmeyer and M. Göckeler and R. Horsley and E. Laermann and G. Schierholz},
journal= {arXiv preprint arXiv:hep-lat/9211038},
year = {2009}
}
Comments
(contribution to Lattice 1992), 4 pages + 1 encapsulated postscript figure, HLRZ 92-81 (In the earlier version the topological charge density was incorrectly normalized. ERRARE HUMANUM EST!)