Color Screening by Pions

被引：16
作者：
Detmold, William [1 ]
Savage, Martin J. [1 ]
机构：
[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 03期
关键词：
LATTICE QCD;
D O I：
10.1103/PhysRevLett.102.032004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Lattice QCD is used to calculate the potential between a static quark and antiquark 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 (Q) over bar 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 (Q) over bar separation over the range r less than or similar to 1 fm explored in this work. Our results are consistent with the pion-condensate behaving as a (nonlinear) chromodielectric.
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