The QCD Running Coupling at Finite Temperature and Density
| dc.creator | Schneider, R. A. | |
| dc.date | 2003-03-13 | |
| dc.date.accessioned | 2026-07-07T03:49:17Z | |
| dc.date.available | 2026-07-07T03:49:17Z | |
| dc.description | We present for the first time a self-contained calculation of the QCD running coupling at finite temperature and quark chemical potential, alpha_s(T, mu), based on a semiclassical background field method. The hard thermal/dense loop results on the Debye screening mass are recovered in a first approximation. The final result can be interpreted as the ordinary zero temperature running coupling, with momenta replaced by in-medium scales Lambda: at high density and zero temperature, the quark scale is set by Lambda ~ 24.4 mu. At high temperature and moderate densities, the quark in-medium scale reads Lambda^2 ~ [2.91 T]^2 + [1.91 mu]^2, which resembles the naive phenomenological estimate Lambda^2 = (pi T)^2 + mu^2. | |
| dc.description | 12 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0303104 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0303104 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42343 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The QCD Running Coupling at Finite Temperature and Density | |
| dc.type | text |