Nucleon structure in terms of OPE with non-perturbative Wilson coeffcients

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dc.contributor.authorBietenholz, W.en
dc.contributor.authorCundy, N.en
dc.contributor.authorGockeler, M.en
dc.contributor.authorHorsley, R.en
dc.contributor.authorPerlt, H.en
dc.contributor.authorPleiter, D.en
dc.contributor.authorRakow, P.en
dc.contributor.authorSchierholz, G.en
dc.contributor.authorSchiller, A.en
dc.contributor.authorZanotti, J.en
dc.contributor.conferenceInternational Symposium on Lattice Field Theory (26th : 2008 : Williamsburg, Virginia, U.S.A.)en
dc.date.issued2008en
dc.descriptionListed in published papers as: Hadron structure in terms of OPE with non-perturbative Wilson coefficients; PoS(LATTICE 2008)149en
dc.description.abstractLattice calculations could boost our understanding of Deep Inelastic Scattering by evaluating moments of the Nucleon Structure Functions. To this end we study the product of electromagnetic currents between quark states. The Operator Product Expansion (OPE) decomposes it into matrix elements of local operators (depending on the quark momenta) and Wilson coefficients (as functions of the larger photon momenta). For consistency with the matrix elements, we evaluate a set of Wilson coefficients non-perturbatively, based on propagators for numerous momentum sources, on a 243 ×48 lattice. The use of overlap quarks suppresses unwanted operator mixing and lattice artifacts. Results for the leadingWilson coefficients are extracted by means of Singular Value Decomposition.)en
dc.description.statementofresponsibilityW. Bietenholz, N. Cundy, M. Göckeler, R. Horsley, H. Perlt, D. Pleiter, P.E.L. Rakow, G. Schierholz, A. Schiller and J.M. Zanottien
dc.identifier.citationP o S - Proceedings of Science (LATTICE 2008), 2008; 149:1-149:7en
dc.identifier.issn1824-8039en
dc.identifier.orcidZanotti, J. [0000-0002-3936-1597]en
dc.identifier.urihttp://hdl.handle.net/2440/77045
dc.language.isoenen
dc.publisherScuola Internazionale Superiore di Studi Avanzati (S I S S A)en
dc.publisher.placeItalyen
dc.rightsCopyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.en
dc.source.urihttp://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=66en
dc.titleNucleon structure in terms of OPE with non-perturbative Wilson coeffcientsen
dc.typeConference paperen
pubs.publication-statusPublisheden

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