Instanton traces in lattice gluon correlation functions

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dc.creatorBoucaud, Ph.
dc.creatorDe Soto, F.
dc.creatorYaouanc, A. Le
dc.creatorLeroy, J. P.
dc.creatorMicheli, J.
dc.creatorPene, O.
dc.creatorRodriguez-Quintero, J.
dc.date2005-05-17
dc.date.accessioned2026-07-07T03:54:55Z
dc.date.available2026-07-07T03:54:55Z
dc.descriptionStrong coupling constant computed in Landau gauge and MOM renormalization scheme from lattice two and three gluon Green Functions exhibits an unexpected behavior in the deep IR, showing a maximum value around $1 {\rm GeV}$. We analise this coupling below this maximum within a semiclassical approach, were gluon degrees of freedom at very low energies are described in terms of the classical solutions of the lagrangian, namely instantons. We provide some new results concerning the relationship between instantons and the low energy dynamics of QCD, by analising gluon two- and three-point Green functions separately and with the help of a cooling procedure to eliminate short range correlations.
dc.description4 pages, talk given at XXXX Rencontres de Moriond on QCD and Hadronic Interactions, La Thuile (Italy)
dc.identifierhttps://arxiv.org/abs/hep-ph/0505150
dc.identifierhttp://arxiv.org/abs/hep-ph/0505150
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/44378
dc.subjectHigh Energy Physics - Phenomenology
dc.titleInstanton traces in lattice gluon correlation functions
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