Moments of nucleon spin-dependent generalized parton distributions

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...

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Bibliographic Details
Published in:Nuclear physics. Section B, Proceedings supplement Proceedings supplement, 2004, Vol.129, p.907-909
Main Authors: Schroers, W., Brower, R.C., Dreher, P., Edwards, R., Fleming, G., Hägler, Ph, Heller, U.M., Lippert, Th, Negele, J.W., Pochinsky, A.V., Renner, D.B., Richards, D., Schilling, K.
Format: Article
Language:English
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Summary: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.
ISSN:0920-5632
1873-3832
DOI:10.1016/S0920-5632(03)02750-6