Charmonium moving through a strongly coupled QCD plasma: a holographic perspective
arXiv:1305.1923 · doi:10.1103/PhysRevD.88.086001
Abstract
We study the properties of charmonium in a strongly coupled QCD-like plasma at finite momentum. As a basis for this study, a "bottom-up" holographic model is used which has been previously shown to reproduce charmonium phenomenology in vacuum and give a reasonable dissociation temperature at zero momentum. The finite momentum spectral functions are presented and found to be consistent with recent lattice results. The in-medium dispersion relation and momentum dependence of decay width of J/Psi have also been studied. We find no signature of a subluminal limiting velocity from the dispersion relation, while we note that the dissociation temperature decreases with momentum faster than previous holographic models. Based upon the dissociation temperature, a maximum momentum for J/Psi in medium is identified and its phenomenological implications on J/Psi suppression are discussed.
23 pages, 8 figures. References added. Published version
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