Comparing the drag force on heavy quarks in N=4 super-Yang-Mills theory and QCD
| dc.creator | Gubser, Steven S. | |
| dc.date | 2006-11-24 | |
| dc.date | 2006-11-28 | |
| dc.date.accessioned | 2026-07-07T11:23:16Z | |
| dc.date.available | 2026-07-07T11:23:16Z | |
| dc.description | Computations of the drag force on a heavy quark moving through a thermal state of strongly coupled N=4 super-Yang-Mills theory have appeared recently in hep-th/0605158, hep-ph/0605199, and hep-th/0605182. I compare the strength of this effect between N=4 gauge theory and QCD, using the static force between external quarks to normalize the 't Hooft coupling. Comparing N=4 and QCD at fixed energy density then leads to a relaxation time of roughly 2 fm/c for charm quarks moving through a quark-gluon plasma at T=250 MeV. This estimate should be regarded as preliminary because of the difficulties of comparing two such different theories. | |
| dc.description | 16 pages, 1 figure. v2: corrected estimate of eta/s, refs added | |
| dc.identifier | https://arxiv.org/abs/hep-th/0611272 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0611272 | |
| dc.identifier | Phys.Rev.D76:126003,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.126003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/194834 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Comparing the drag force on heavy quarks in N=4 super-Yang-Mills theory and QCD | |
| dc.type | text |