Moments of nucleon spin-dependent generalized parton distributions
/ Authors
W. Schroers, R. Brower, P. Dreher, R. Edwards, G. Fleming, P. Hagler, U. Heller, T. Lippert, J. Negele, A. Pochinsky
and 7 more authors
D. Renner, D. Richards, K. S. Mit, U. Boston, Jlab, Aps, U. Wuppertal
/ Abstract
Abstract We present a lattice measurement of the first two moments of the spin-dependent GPD H ∼~ (x, ξ, 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.
Journal: arXiv: High Energy Physics - Lattice