A lattice calculation of the pi-N sigma term is described using dynamical staggered fermions. Preliminary results give a sea term comparable in magnitude to the valence term.
Cite
@article{arxiv.hep-lat/9311020,
title = {The pi-N Sigma term - an evaluation using staggered fermions},
author = {R. Altmeyer and M. Goeckeler and R. Horsley and E. Laermann and G. Schierholz},
journal= {arXiv preprint arXiv:hep-lat/9311020},
year = {2009}
}
Comments
Latex article, 3 pages. Contribution to the LAT93 Conference (Dallas, U.S.A., September 1993). HLRZ preprint 93-70