1. Thermalization of gluons in spatially homogeneous systems
- Author
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Cabodevila, Sergio Barrera, Salgado, Carlos A., Wu, Bin, Cabodevila, Sergio Barrera, Salgado, Carlos A., and Wu, Bin
- Abstract
We investigate thermalization of gluons in spatially homogeneous systems using the Boltzmann equation in diffusion approximation. A complete picture on thermalization is obtained for both initially under- and over-populated systems. In an initially under-populated system, we find that its soft sector undergoes three stages: overheating, cooling/overcooling and reheating before full thermalization is achieved. In an initially over-populated system, we find that its soft sector only undergoes two stages towards full thermalization: overheating and cooling. The cooling stage is consistently driven by momentum broadening due to multiple elastic collisions, manifest as a non-thermal fixed-point solution., Comment: 9 pages, 3 figures
- Published
- 2022