First evidence of Nf-dependence in the QCD interquark potential

1996/04/17 by U. Glässner, S. Güsken, H. Hoeber +6 · 5 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Quenched approximation #Scaling #hep-lat #hep-ph

paper · pdf · doi:10.1016/0370-2693(96)00700-9

published as Phys.Lett. B383 (1996) 98-104 · 9 pages (1 tex file epsf-style + 6 ps-figures)

arxiv created 1996/04/17 · openalex publication_date 1996/08/01 · arxiv updated 2009/11/30 · openalex created_date 2020/02/24 · openalex updated_date 2026/08/05

Abstract

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 β= 5.6 on lattice size of 16³ × 32 with 100 configurations per sea-quark mass. We compare the full QCD potential with its quenched counterpart at equal lattice spacing, a^-1 ≃ 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 ≃ (1.5 \rm fm)³.

Citations

• The heavy quark potential in QCD with 2 flavors of dynamical quarks
• The static approximation of heavy-light quark systems. A detailed lattice study
• The running coupling from SU (3) lattice gauge theory
• Hadron Spectrum and Matrix Elements in QCD with Dynamical Wilson Fermions at 6/g²=5.3
• The running coupling from lattice gauge theory

Cited by

• Light meson radial Regge trajectories
• Heavy quark physics in N = 2 QCD
• Instanton effects on the heavy-quark static potential
• Light hadron spectroscopy with O(a) improved dynamical fermions.
• Dynamical quark effects in QCD