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arXiv · hep-lat/0309065

Moments of nucleon spin-dependent generalized parton distributions

W. Schroers·R. C. Brower·P. Dreher·R. Edwards·G. Fleming·Ph. Hagler·U. M. Heller·Th. Lippert·J. W. Negele·A. V. Pochinsky·D. B. Renner·D. Richards·K. Schilling
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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.

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W. Schroers, R. C. Brower, P. Dreher, R. Edwards, G. Fleming, Ph. Hagler, U. M. Heller, Th. Lippert, J. W. Negele, A. V. Pochinsky, D. B. Renner, D. Richards, K. Schilling. 2003-09-14. Moments of nucleon spin-dependent generalized parton distributions. https://doi.org/10.1016/s0920-5632(03)02750-6

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