Color Screening by Pions

Abstract

Lattice QCD is used to calculate the potential between a static quark and anti-quark in the presence of a finite density of pi^+'s. Correlation functions of multiple pi^+'s are used in conjunction with Wilson-loop correlators to determine the difference between the Q\overline{Q}-potential in free-space and in the presence of a pion condensate. The modifications to the potential are found to have significant dependence on the Q\overline{Q} separation over the range r < 1 fm explored in this work. Our results are consistent with the pion-condensate behaving as a (nonlinear) chromo-dielectric.

4 pages, 5 figs

References in corpus (13)

• The Chroma Software System for Lattice QCD
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• Multi-Pion Systems in Lattice QCD and the Three-Pion Interaction
• Multi-Pion States in Lattice QCD and the Charged-Pion Condensate
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• Is J/psi-Nucleon Scattering Dominated by the Gluonic van der Waals Interaction?
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Cited by in corpus (13)

• The Scalar Strange Content of the Nucleon from Lattice QCD
• Nuclear Physics from Lattice QCD
• Quarkonium-Nucleus Bound States from Lattice QCD
• String effects and the distribution of the glue in mesons at finite temperature
• SU(2) Low-Energy Constants from Mixed-Action Lattice QCD
• Evidence for non-analytic light quark mass dependence in the baryon spectrum
• Quarkonium at non-zero isospin density
• Enhanced contribution of the pairing gap to the QCD equation of state at large isospin chemical potential
• Gluonic profile of the static baryon at finite temperature
• Finite-volume matrix elements in multi-boson states
• Static meson correlators in 2+1 flavor QCD at non-zero temperature
• Screening effects in plasma with charged Bose condensate
• Baryon masses at nonzero isospin/kaon density