Short comment about the lattice gluon propagator at vanishing momentum

Ph. Boucaud (1) , Th. Brüntjen (1) , J. P. Leroy (1) , A. Le Yaouanc (1) , A. Y. Lokhov (2) , J. Micheli (1) , O. Pène (1) , J. Rodríguez-Quintero , C. Roiesnel (2)

1 LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
2 CPHT - Centre de Physique Théorique [Palaiseau]

We argue that all evidences point towards a finite non-vanishing zero momentum renormalised lattice gluon propagator in the infinite volume limit. We argue that different simulations with different lattice setups end-up with fairly compatible results for the gluon propagator at zero momentum, with different positive slopes as a function of the inverse volume.

Domaines: Physique des Hautes Energies - Réseau [hep-lat]

Ph. Boucaud, Th. Brüntjen, J. P. Leroy, A. Le Yaouanc, A. Y. Lokhov, et al.. Short comment about the lattice gluon propagator at vanishing momentum. 2006. ⟨hal-00020042⟩