Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1088/1126-6708/2008/10/098
Keywords
Gauge-gravity correspondence; AdS-CFT Correspondence; Thermal Field Theory; Supersymmetric Effective Theories
Categories
Funding
- U. S. Department of Energy
- Sloan Foundation
- Cluster of Excellence for Fundamental Physics - Origin and Structure of the Universe
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We consider a heavy meson moving slowly through high temperature non-Abelian plasmas. Using a simple dipole effective Lagrangian, we calculate the in-medium mass shift and the drag coefficient of the meson in N = 4 Super Yang Mills theory at weak and strong coupling. As anticipated, in the large N limit the mass shift is finite while the drag is suppressed by 1/N-2. After comparing results to perturbative QCD estimates (which are also calculated), we reach the conclusion that relative to weak coupling expectations the effect of strong coupling is to reduce the momentum diffusion rate and to increase the relaxation time by up to a factor of four.
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