Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 75, Issue 7, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-015-3509-3
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Funding
- Department of Energy, DOE [DE-SC0008027, DE-SC0008132]
- National Science Foundation [CNS-0821794]
- U.S. Department of Energy (DOE) [DE-SC0008027] Funding Source: U.S. Department of Energy (DOE)
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Relativistic collisions of light on heavy ions (p + Au at GeV, p + Au , d + Au ,He + Au at GeV and 200 GeV and p + Pb ,He + Pb at TeV) are simulated using superSONIC, a model that includes pre-equilibrium flow, viscous hydrodynamics and a hadronic cascade afterburner. Even though these systems have strong gradients and only consist of at most a few tens of charged particles per unit rapidity, one finds evidence that a hydrodynamic description applies to these systems. Based on these simulations, the presence of a triangular flow component in d + Au collisions at GeV is predicted to be similar in magnitude to that found in He + Au collisions. Furthermore, the ratio of He + Au to d + Au is found to be sensitive to the presence of pre-equilibrium flow. This would imply an experimentally accessible window into pre-equilibrium QCD dynamics using light-heavy-ion collisions.
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