| Issue |
EPJ Web Conf.
Volume 364, 2026
XXXI International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions “Quark Matter 2025”
|
|
|---|---|---|
| Article Number | 09004 | |
| Number of page(s) | 4 | |
| Section | Initial State of Hadronic and Electron-Ion Collisions & Nuclear Structure | |
| DOI | https://doi.org/10.1051/epjconf/202636409004 | |
| Published online | 17 April 2026 | |
https://doi.org/10.1051/epjconf/202636409004
Pre-hydrodynamic jet momentum broadening beyond the jet quenching parameter
1 Institute for Theoretical Physics, TU Wien, Wiedner Hauptstraße 8-10, 1040 Vienna, Austria
2 SUBATECH UMR 6457 (IMT Atlantique, Université de Nantes, IN2P3/CNRS), 4 rue Alfred Kastler, 44307 Nantes, France
3 MIT Center for Theoretical Physics - a Leinweber Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
* Speaker, e-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 17 April 2026
Abstract
We obtain the collision kernel and related dipole cross section during the initial nonequilibrium stages in heavy-ion collisions. These quantities are a crucial input for jet quenching calculations. We further compute the gluon splitting rates in the AMY formalism resulting from this nonequilibrium kernel. Comparing with thermal and commonly used forms, we find that particularly the gluon splitting rate for parton energies of the order of the hard effective temperature significantly differs from these approximations.
© The Authors, published by EDP Sciences, 2026
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