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12th High-Energy Physics International Conference on Quantum ChromoDynamics (QCD 05), Montpellier : France
Ghost and Gluon leading power corrections in Landau gauge
Ph. Boucaud1, F. De Soto2, J.P. Leroy1, A. Le Yaouanc1, A.Y. Lokhov3, J. Micheli1, O. Pène1, J. Rodríguez-Quintero, C. Roiesnel3

Gluon two- and three-point Green Functions computed in Landau gauge on the lattice have shown the existence of 1/q2 power corrections to the purely perturbative expressions that can be explained through the Operator Product Expansion as the influence of a gauge dependent mass dimension two condensate. The analysis of the ghost propagator within this framework of gauge-dependent power corrections is now performed.
1 :  LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
2 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 :  CPHT - Centre de Physique Théorique [Palaiseau]
Physique/Physique des Hautes Energies - Réseau