Color Screening by Pions

Details Color Screening by Pions Color Screening by Pions

2008-09-04

arxiv.org/abs/0809.0892v1

Phys.Rev.Lett.102:032004,2009

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, 5 figs

Scientific paper

10.1103/PhysRevLett.102.032004

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.

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