Boucaud, Ph.Leroy, J. P.Le Yaouanc, AlainMicheli, J.Pène, O.Soto Borrero, Feliciano Carlos deDonini, A.Moutarde, HervéRodríguez Quintero, José2015-05-052015-05-052002Boucaud, Ph., Leroy, J.P., Le Yaouanc, A., Micheli, J., Pène, O., Soto Borrero, F.C., Donini, A., Moutarde, H., Rodríguez Quintero, J.: "Instantons and the A (2) condensate". Physical Review D. Vol. 66, n. 3, (2002). ISSN 1550-79981550-79981550-2368 (electrónico)10.1103/PhysRevD.66.034504http://hdl.handle.net/10272/10497We argue that the ⟨A2OPE⟩ condensate found in the Landau gauge on lattices, when an operator product expansion of Green’s functions is performed, might be explained by instantons. We use cooling to estimate the instanton contribution and extrapolate back the result to the thermalized configuration. The resulting ⟨A2inst⟩ is similar to ⟨A2OPE⟩.engAn error occurred on the license name.An error occurred getting the license - uri.journal articleopen access