Heavy quark diffusion in perturbative QCD at next-to-leading order
| dc.creator | Caron-Huot, Simon | |
| dc.creator | Moore, Guy D. | |
| dc.date | 2007-08-30 | |
| dc.date.accessioned | 2026-07-07T11:42:07Z | |
| dc.date.available | 2026-07-07T11:42:07Z | |
| dc.description | We compute the momentum diffusion coefficient of a nonrelativistic heavy quark in a hot QCD plasma, to next-to-leading order in the weak coupling expansion. Corrections arise at O(g); physically they represent interference between overlapping scatterings, as well as soft, electric scale ($p\sim gT$) gauge field physics, which we treat using the hard thermal loop (HTL) effective theory. In 3-color, 3-flavor QCD, the momentum diffusion constant of a fundamental representation heavy quark at NLO is $κ= \frac{16π}{3} α_s^2 T^3 (\ln \frac{1}{g} + 0.07428 + 1.8869 g)$. The convergence of the weak coupling expansion is poor. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0708.4232 | |
| dc.identifier | http://arxiv.org/abs/0708.4232 | |
| dc.identifier | Phys.Rev.Lett.100:052301,2008 | |
| dc.identifier | doi:10.1103/PhysRevLett.100.052301 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200770 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | Heavy quark diffusion in perturbative QCD at next-to-leading order | |
| dc.type | text |