Signatures of charmonium modification in spatial correlation functions

被引:30
作者
Karsch, F. [1 ,2 ]
Laermann, E. [1 ]
Mukherjee, Swagato [2 ]
Petreczky, P. [2 ]
机构
[1] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany
[2] Brookhaven Natl Lab, Upton, NY 11973 USA
来源
PHYSICAL REVIEW D | 2012年 / 85卷 / 11期
关键词
SPECTRAL FUNCTIONS; QCD; DEPENDENCE; ENERGY;
D O I
10.1103/PhysRevD.85.114501
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study spatial correlation functions of charmonium in 2 + 1 flavor QCD using an improved staggered formulation. Contrary to the temporal correlation functions the spatial correlation functions exhibit a strong temperature dependence above the QCD transition temperature. Above this temperature they are sensitive to temporal boundary conditions. Both features become significant at a temperature close to 1.5T(c) and suggest corresponding modifications of charmonium spectral functions.
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页数:6
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