FIRST EVIDENCE OF N-F-DEPENDENCE IN THE QCD INTERQUARK POTENTIAL

We present a lattice calculation of the interquark potential between s tatic quarks in a ''full'' QCD simulation with 2 flavours of dynamical Wilson-quarks at three intermediate sea-quark masses. We work at beta = 5.6 on a lattice size of 16(3) x 32 with 100 configurations per sea -quark mass. We compare the full QCD potential with its quenched count erpart at equal lattice spacing, alpha(-1) similar or equal to 2.0 GeV , which is at the onset of the quenched scaling regime. We find that t he full QCD potential Lies consistently below that of quenched QCD. We see no evidence for string-breaking effects on these lattice volumes, V similar or equal to (1.5 fm)(3).