Non-equilibrium photons from the bottom-up thermalization scenario
In this work, I calculate the p⊥ resolved spectra for the three stages of the bottom-up scenario, which are comparable to the thermal contribution, particularly at higher values of the saturation scale Q2. Analytical solutions are obtained by including a parametrization of scaling solutions from far...
Gespeichert in:
| 1. Verfasser: | |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
[August 2022]
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| In: |
Annals of physics
Year: 2022, Jahrgang: 443, Pages: 1-23 |
| DOI: | 10.1016/j.aop.2022.168984 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.aop.2022.168984 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0003491622001403 
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| Verfasserangaben: | Oscar Garcia-Montero (Institut für Theoretische Physik, Universität Heidelberg) |
MARC
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| 520 | |a In this work, I calculate the p⊥ resolved spectra for the three stages of the bottom-up scenario, which are comparable to the thermal contribution, particularly at higher values of the saturation scale Q2. Analytical solutions are obtained by including a parametrization of scaling solutions from far-from-equilibrium classical statistical lattice simulations into a small angle kinetic rate. Furthermore, a theoretically motivated ansatz is used to account for near-collinear enhancement of the low-p⊥ radiation. The system is phenomenologically constrained using the charged hadron multiplicities from LHC and RHIC as in previous parametric estimates and fair agreement with the data available for photons was found. I find that for this realistic set of parameters, the contribution from the pre-equilibrium dominates the excess photons. | ||
| 650 | 4 | |a Bottom-up | |
| 650 | 4 | |a Equilibration | |
| 650 | 4 | |a Photon | |
| 650 | 4 | |a Pre-equilibrium | |
| 650 | 4 | |a Quark-gluon plasma | |
| 650 | 4 | |a Thermalization | |
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