Dileptons, spectral weights, and conductivity in the Quark-Gluon Plasma
| dc.creator | Moore, Guy D. | |
| dc.creator | Robert, Jean-Marie | |
| dc.date | 2006-07-14 | |
| dc.date.accessioned | 2026-07-07T07:16:44Z | |
| dc.date.available | 2026-07-07T07:16:44Z | |
| dc.description | We re-examine soft dilepton emission from a weakly coupled Quark-Gluon Plasma. We show that Braaten, Pisarski, and Yuan's result that the dilepton rate rises as E^-4 (and the spectral weight scales as 1/E) at small energy E<<gT is correct, but that the coefficient they found for this behavior is not correct, because their analysis was incomplete. At still smaller scales, the behavior moderates to ~1/E^2 for E <= g^4 T, consistent with a finite electrical conductivity. We evaluate the spectral weight in the E~g^4 T region by kinetic theory techniques and show that it satisfies a sum rule, which makes the determination of electrical conductivity from the Euclidean correlation function very challenging. | |
| dc.description | 21 pages, including 5 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0607172 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0607172 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/113695 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Dileptons, spectral weights, and conductivity in the Quark-Gluon Plasma | |
| dc.type | text |