Heavy Quark Diffusion in Strongly Coupled $\N=4$ Yang Mills
| dc.creator | Casalderrey-Solana, Jorge | |
| dc.creator | Teaney, Derek | |
| dc.date | 2006-05-17 | |
| dc.date | 2006-06-19 | |
| dc.date.accessioned | 2026-07-07T11:05:04Z | |
| dc.date.available | 2026-07-07T11:05:04Z | |
| dc.description | We express the heavy quark diffusion coefficient as the temporal variation of a Wilson line along the Schwinger-Keldysh contour. This generalizes the classical formula for diffusion as a force-force correlator to a non-abelian theory. We use this formula to compute the diffusion coefficient in strongly coupled $\N=4$ Yang-Mills by studying the fluctuations of a string in $AdS_5\times S_5$. The string solution spans the full Kruskal plane and gives access to contour correlations. The diffusion coefficient is $D=2/\sqrtλ πT$ and is therefore parametrically smaller than momentum diffusion, $η/(e+p)=1/4πT$. The quark mass must be much greater than $T\sqrtλ$ in order to treat the quark as a heavy quasi-particle. The result is discussed in the context of the RHIC experiments. | |
| dc.description | 17 pages + 2 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0605199 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0605199 | |
| dc.identifier | Phys.Rev.D74:085012,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.74.085012 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189100 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Nuclear Theory | |
| dc.title | Heavy Quark Diffusion in Strongly Coupled $\N=4$ Yang Mills | |
| dc.type | text |