Boucaud, Ph.Soto, F. deLe Yaouanc, A.Leroy, J. P.Micheli, J.Moutarde, H.Pène, OlivierRodríguez Quintero, J.2017-08-012017-08-012003Boucaud, P., de Soto, F., Le Yaouanc, A., Leroy, J.P., Micheli, J., Moutarde, H.,...,Rodríguez Quintero, J. (2003). The strong coupling constant at small momentum as an instanton detector. Journal of High Energy Physics, 7 (4), 65-74.1029-8479 (electronico)http://hdl.handle.net/11441/63434We present a study of αMOM(p) at small p computed from the lattice in the quenched approximation (nf = 0). It shows a dramatic ∝ p4 law which can be understood within an instanton liquid model. In this framework the prefactor gives a direct measure of the instanton density in thermalised configurations. A preliminary result for this density is 5.27(4) fm-4application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1088/1126-6708/2003/04/005