Non-equilibrium QCD: Interplay of hard and soft dynamics in high-energy multi-gluon beams
| dc.creator | Geiger, Klaus | |
| dc.date | 1996-11-22 | |
| dc.date.accessioned | 2026-07-07T11:35:19Z | |
| dc.date.available | 2026-07-07T11:35:19Z | |
| dc.description | A quantum-kinetic formulation of the dynamical evolution of a high-energy non-equilibrium gluon system at finite density is developed, to study the interplay between quantum fluctuations of high-momentum (hard) gluons and the low-momentum (soft) mean color-field that is induced by the collective motion of the hard particles. From the exact field-equations of motion of QCD, a self-consistent set of approximate quantum-kinetic equations are derived by separating hard and soft dynamics and choosing a convenient axial-type gauge. This set of master equations describes the momentum space evolution of the individual hard quanta, the space-time development of the ensemble of hard gluons, and the generation of the soft mean-field by the current of the hard particles. The quantum-kinetic equations are approximately solved to order g^2 (1+gA) for a specific example, namely the scenario of a high-energy gluon beam along the lightcone, demonstrating the practical applicability of the approach. | |
| dc.description | 52 pages including 7 postscript figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9611400 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9611400 | |
| dc.identifier | Phys.Rev.D56:2665-2701,1997 | |
| dc.identifier | doi:10.1103/PhysRevD.56.2665 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198553 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Nuclear Theory | |
| dc.title | Non-equilibrium QCD: Interplay of hard and soft dynamics in high-energy multi-gluon beams | |
| dc.type | text |