Heavy flavor diffusion in weakly coupled N=4 Super Yang-Mills theory

Details Heavy flavor diffusion in weakly coupled N=4 Super Yang-Mills theory Heavy flavor diffusion in weakly coupled N=4 Super Yang-Mills theory

2006-07-12

arxiv.org/abs/hep-ph/0607148v3

JHEP0611:037,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 4 figures; v3: error corrected in calculations, figures and discussion modified accordingly

Scientific paper

10.1088/1126-6708/2006/11/037

We use perturbation theory to compute the diffusion coefficient of a heavy quark or scalar moving in N=4 SU(N_c) Super Yang-Mills plasma to leading order in the coupling and the ratio T/M<<1. The result is compared both to recent strong coupling calculations in the same theory and to the corresponding weak coupling result in QCD. Finally, we present a compact and simple formulation of the Lagrangian of our theory, N=4 SYM coupled to a massive fundamental N=2 hypermultiplet, which is well-suited for weak coupling expansions.

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