A Ghost Story II: Ghosts, Gluons and the Gluon condensate beyond the IR of QCD

J. Rodr\'iguez-Quintero , Ph. Boucaud , F. de Soto , J.P. Leroy , A. Le Yaouanc , J. Micheli , O. P\`ene

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classification ✦ hep-ph

keywords gluonbeyondcondensateghostanalysisappliedcomputedcoupling

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Beyond the deep IR, the analysis of ghost and gluon propagators still keeps very interesting non-perturbative information. The Taylor-scheme coupling can be computed and applied to obtain the $\Lambda_{\rm QCD}$ parameter from Landau gauge lattice simulations. Furthermore, a dimension-two gluon condensate, that can be understood in the instanton liquid model, plays an important role in the game.

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A Ghost Story II: Ghosts, Gluons and the Gluon condensate beyond the IR of QCD

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