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arXiv · 0911.4892

Quark structure from the lattice Operator Product Expansion

W. Bietenholz·N. Cundy·M. Göckeler·R. Horsley·H. Perlt·D. Pleiter·P. E. L. Rakow·G. Schierholz·A. Schiller·T. Streuer·J. M. Zanotti
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Abstract

We have reported elsewhere in this conference on our continuing project to determine non-perturbative 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 Landau-gauge 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.

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W. Bietenholz, N. Cundy, M. Göckeler, R. Horsley, H. Perlt, D. Pleiter, P. E. L. Rakow, G. Schierholz, A. Schiller, T. Streuer, J. M. Zanotti. 2009-11-25. Quark structure from the lattice Operator Product Expansion. https://arxiv.org/abs/0911.4892

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