Chiral extrapolation of lattice moments of proton quark distributions

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dc.creatorDetmold, W.
dc.creatorMelnitchouk, W.
dc.creatorNegele, J. W.
dc.creatorRenner, D. B.
dc.creatorThomas, A. W.
dc.date2001-03-09
dc.date2001-08-27
dc.date.accessioned2026-07-07T11:30:25Z
dc.date.available2026-07-07T11:30:25Z
dc.descriptionWe present the resolution of a long-standing discrepancy between the moments of parton distributions calculated from lattice QCD and their experimental values. We propose a simple extrapolation formula for the moments of the nonsinglet quark distribution u-d, as a function of quark mass, which embodies the general constraints imposed by the chiral symmetry of QCD. The inclusion of the leading nonanalytic behavior leads to an excellent description of both the lattice data and the experimental values of the moments.
dc.description9 pages, 1 figure, to appear in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/hep-lat/0103006
dc.identifierhttp://arxiv.org/abs/hep-lat/0103006
dc.identifierPhys.Rev.Lett.87:172001,2001
dc.identifierdoi:10.1103/PhysRevLett.87.172001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197005
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleChiral extrapolation of lattice moments of proton quark distributions
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