Jet broadening and radiation in the early anisotropic plasma in heavy-ion collisions
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866908518953517056 |
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| author | Altenburger, Alois Boguslavski, Kirill Lindenbauer, Florian |
| author_facet | Altenburger, Alois Boguslavski, Kirill Lindenbauer, Florian |
| contents | Measuring the energy loss of energetic jet partons may provide experimental opportunities to constrain the initial nonequilibrium stages in heavy-ion collisions, which requires theoretical predictions for the jet-medium potential. In this letter, we go beyond the usual harmonic approximation, extract this potential for the first time using QCD kinetic theory simulations, and provide a simple cutoff-independent small-distance form. We find significant differences to thermal media at early times in momentum and position space, as well as substantial angular dependence. Applying our results to the gluon splitting rates using a novel computational method reveals tensions in the current kinetic theory implementations for early times. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_03868 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Jet broadening and radiation in the early anisotropic plasma in heavy-ion collisions Altenburger, Alois Boguslavski, Kirill Lindenbauer, Florian High Energy Physics - Phenomenology Nuclear Theory Measuring the energy loss of energetic jet partons may provide experimental opportunities to constrain the initial nonequilibrium stages in heavy-ion collisions, which requires theoretical predictions for the jet-medium potential. In this letter, we go beyond the usual harmonic approximation, extract this potential for the first time using QCD kinetic theory simulations, and provide a simple cutoff-independent small-distance form. We find significant differences to thermal media at early times in momentum and position space, as well as substantial angular dependence. Applying our results to the gluon splitting rates using a novel computational method reveals tensions in the current kinetic theory implementations for early times. |
| title | Jet broadening and radiation in the early anisotropic plasma in heavy-ion collisions |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2509.03868 |