Thermalization of gluons in spatially homogeneous systems
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 secto...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269322006256 |
| _version_ | 1797990909887905792 |
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| author | Sergio Barrera Cabodevila Carlos A. Salgado Bin Wu |
| author_facet | Sergio Barrera Cabodevila Carlos A. Salgado Bin Wu |
| author_sort | Sergio Barrera Cabodevila |
| collection | DOAJ |
| description | 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 scaling solution. |
| first_indexed | 2024-04-11T08:43:04Z |
| format | Article |
| id | doaj.art-5812bfc802ff411bb80b017f92fdaff3 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-11T08:43:04Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-5812bfc802ff411bb80b017f92fdaff32022-12-22T04:34:02ZengElsevierPhysics Letters B0370-26932022-11-01834137491Thermalization of gluons in spatially homogeneous systemsSergio Barrera Cabodevila0Carlos A. Salgado1Bin Wu2Instituto Galego de Física de Altas Enerxías IGFAE, Universidade de Santiago de Compostela, E-15782 Galicia, SpainInstituto Galego de Física de Altas Enerxías IGFAE, Universidade de Santiago de Compostela, E-15782 Galicia, SpainCorresponding author.; Instituto Galego de Física de Altas Enerxías IGFAE, Universidade de Santiago de Compostela, E-15782 Galicia, SpainWe 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 scaling solution.http://www.sciencedirect.com/science/article/pii/S0370269322006256 |
| spellingShingle | Sergio Barrera Cabodevila Carlos A. Salgado Bin Wu Thermalization of gluons in spatially homogeneous systems Physics Letters B |
| title | Thermalization of gluons in spatially homogeneous systems |
| title_full | Thermalization of gluons in spatially homogeneous systems |
| title_fullStr | Thermalization of gluons in spatially homogeneous systems |
| title_full_unstemmed | Thermalization of gluons in spatially homogeneous systems |
| title_short | Thermalization of gluons in spatially homogeneous systems |
| title_sort | thermalization of gluons in spatially homogeneous systems |
| url | http://www.sciencedirect.com/science/article/pii/S0370269322006256 |
| work_keys_str_mv | AT sergiobarreracabodevila thermalizationofgluonsinspatiallyhomogeneoussystems AT carlosasalgado thermalizationofgluonsinspatiallyhomogeneoussystems AT binwu thermalizationofgluonsinspatiallyhomogeneoussystems |