%0 Journal Article
%A de Soto, Feliciano
%A Boucaud, P.
%A Le Yaouanc, A.
%A Leroy, J. P.
%A Micheli, J.
%A Pène, O.
%A Moutarde, H.
%A Rodríguez-Quintero, J.
%T The strong coupling constant at small momentum as an instanton detector
%D 2003
%@ 1029-8479
%U http://hdl.handle.net/10433/1010
%X We present a study of ¿MOM(p) at small p computed from the lattice in the quenched approximation (nf = 0). It shows a dramatic proptop4 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¿4.
%K Lattice Gauge field theories
%K Confinement
%K Solitons monopoles and instantons
%K Lattice QCD
%~