Topological Charge Fluctuations and Low-Lying Dirac Eigenmodes

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dc.creatorDong, S. J.
dc.creatorDraper, T.
dc.creatorHorvath, I.
dc.creatorIsgur, N.
dc.creatorLee, F. X.
dc.creatorMcCune, J.
dc.creatorZhang, J. B.
dc.creatorThacker, H. B.
dc.date2001-10-11
dc.date.accessioned2026-07-07T11:30:29Z
dc.date.available2026-07-07T11:30:29Z
dc.descriptionWe discuss the utility of low-lying Dirac eigenmodes for studying the nature of topological charge fluctuations in QCD. The implications of previous results using the local chirality histogram method are discussed, and the new results using the overlap Dirac operator in Wilson gauge backgrounds at lattice spacings ranging from a~0.04 fm to a~0.12 fm are reported. While the degree of local chirality does not change appreciably closer to the continuum limit, we find that the size and density of local structures responsible for chiral peaking do change significantly. The resulting values are in disagreement with the assumptions of the Instanton Liquid Model. We conclude that the fluctuations of topological charge in the QCD vacuum are not locally quantized.
dc.description3 pages, 4 figures, Lattice2001(confinement)
dc.identifierhttps://arxiv.org/abs/hep-lat/0110037
dc.identifierhttp://arxiv.org/abs/hep-lat/0110037
dc.identifierNucl.Phys.Proc.Suppl.106:563-565,2002
dc.identifierdoi:10.1016/S0920-5632(01)01778-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197021
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleTopological Charge Fluctuations and Low-Lying Dirac Eigenmodes
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