First Evidence of $N_f$-Dependence in the QCD Interquark Potential

Details First Evidence of $N_f$-Dependence in the QCD Interquark Potential First Evidence of $N_f$-Dependence in the QCD Interquark Potential

1996-04-17

arxiv.org/abs/hep-lat/9604014v1

Phys.Lett. B383 (1996) 98-104

Physics

High Energy Physics

High Energy Physics - Lattice

9 pages (1 tex file epsf-style + 6 ps-figures)

Scientific paper

10.1016/0370-2693(96)00700-9

We present a lattice calculation of the interquark potential between static 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 lattice size of $16^3 \times 32$ with 100 configurations per sea-quark mass. We compare the full QCD potential with its quenched counterpart at equal lattice spacing, $a^{-1} \simeq 2.0$ GeV, which is at the onset of the quenched scaling regime. We find that the full QCD potential lies consistently below that of quenched QCD. We see no evidence for string-breaking effects on these lattice volumes, $V \simeq (1.5\,\,{\rm fm})^3$.

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