RT Journal Article T1 The strong coupling constant at small momentum as an instanton detector A1 de Soto, Feliciano A1 Boucaud, P. A1 Le Yaouanc, A. A1 Leroy, J. P. A1 Micheli, J. A1 Pène, O. A1 Moutarde, H. A1 Rodríguez-Quintero, J. K1 Lattice Gauge field theories K1 Confinement K1 Solitons monopoles and instantons K1 Lattice QCD AB 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. PB IOP Publishing SN 1029-8479 YR 2003 FD 2003 LK http://hdl.handle.net/10433/1010 UL http://hdl.handle.net/10433/1010 LA en NO Journal of High Energy Physics, 7 (4), pp. 65-74 NO Universidad Pablo de Olavide. Departamento de Sistemas Físicos, Químicos y Naturales DS RIO RD May 8, 2026