Moments of nucleon spin-dependent generalized parton distributions
arXiv:hep-lat/0309065 · doi:10.1016/S0920-5632(03)02750-6
Abstract
We present a lattice measurement of the first two moments of the spin-dependent GPD H-tilde(x,xi,t). From these we obtain the axial coupling constant and the second moment of the spin-dependent forward parton distribution. The measurements are done in full QCD using Wilson fermions. In addition, we also present results from a first exploratory study of full QCD using Asqtad sea and domain-wall valence fermions.
Lattice2003(Theory), 3 pages, 3 figures, to appear in the Proceedings of Lattice 2003