Time-evolution of fluctuations as signal of the phase transition dynamics in a QCD-assisted transport approach
For the understanding of fluctuation measurements in heavy-ion collisions it is crucial to develop quantitatively reliable dynamical descriptions which take the non-perturbative nature of QCD near the phase transition into account. We discuss a novel QCD-assisted transport approach based on non-equi...
Gespeichert in:
| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) Kapitel/Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
3 Aug 2018
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| In: |
Arxiv
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| Online-Zugang: | Verlag, Volltext: http://arxiv.org/abs/1808.01377
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| Verfasserangaben: | M. Bluhm, Y. Jiang, M. Nahrgang, J.M. Pawlowski, F. Rennecke, N. Wink |
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| 245 | 1 | 0 | |a Time-evolution of fluctuations as signal of the phase transition dynamics in a QCD-assisted transport approach |c M. Bluhm, Y. Jiang, M. Nahrgang, J.M. Pawlowski, F. Rennecke, N. Wink |
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| 520 | |a For the understanding of fluctuation measurements in heavy-ion collisions it is crucial to develop quantitatively reliable dynamical descriptions which take the non-perturbative nature of QCD near the phase transition into account. We discuss a novel QCD-assisted transport approach based on non-equilibrium chiral fluid dynamics and the effective action of low energy QCD. In this framework, we study the time-evolution of fluctuation measures of the critical mode, notably the kurtosis, for a non-expanding system. From this, we can estimate the equilibration times of critical mode fluctuations in the QCD phase diagram. These allow us to identify both the phase boundary and the critical region near the QCD critical point. | ||
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