Quark structure from the lattice Operator Product Expansion
- Bietenholz, W.
- Cundy, N.
- Gockeler, M.
- Horsley, R.
- Perlt, H.
- Pleiter, D.
- Rakow, P.
- Schierholz, G.
- Schiller, A.
- Streuer, T.
- Zanotti, J.
DOIAbstract
We have reported elsewhere in this conference on our continuing project to determine nonperturbative Wilson coefficients on the lattice, as a step towards a completely non-perturbative determination of the nucleon structure. In this talk we discuss how these Wilson coefficients can be used to extract Nachtmann moments of structure functions, using the case of off-shell Landaugauge quarks as a first simple example. This work is done using overlap fermions, because their improved chiral properties reduce the difficulties due to operator mixing.W. Bietenholz, N. Cundy, M. Göckeler, R. Horsley, H. Perlt, D. Pleiter, P.E.L. Rakow, G. Schierholz, A. Schiller, T. Streuer and J.M. Zanott
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