Higher-order v2-v3 cumulants reduce to expressions fixed by the mean elliptic flow from nuclear overlap geometry.
Event-by-event distributions of azimuthal asymmetries in ultrarelativistic heavy-ion collisions
3 Pith papers cite this work. Polarity classification is still indexing.
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abstract
Relativistic dissipative fluid dynamics is a common tool to describe the space-time evolution of the strongly interacting matter created in ultrarelativistic heavy-ion collisions. For a proper comparison to experimental data, fluid-dynamical calculations have to be performed on an event-by-event basis. Therefore, fluid dynamics should be able to reproduce, not only the event-averaged momentum anisotropies, $<v_{n}>$, but also their distributions. In this paper, we investigate the event-by-event distributions of the initial-state and momentum anisotropies $\epsilon_n$ and $v_n$, and their correlations. We demonstrate that the event-by-event distributions of relative $v_n$ fluctuations are almost equal to the event-by-event distributions of corresponding $\epsilon_n$ fluctuations, allowing experimental determination of the relative anisotropy fluctuations of the initial state. Furthermore, the correlation $c(v_2,v_4)$ turns out to be sensitive to the viscosity of the fluid providing an additional constraint to the properties of the strongly interacting matter.
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A new model of energy density fluctuations in heavy-ion collisions, built from elementary 1/r^2 sources, reproduces CGC one- and two-point functions to leading-log accuracy and explains the centrality dependence of both elliptic and triangular flow.
Toy models show multi-particle correlators can increase rather than reduce deviation from true flow harmonics in small collision systems.
citing papers explorer
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Explaining higher-order correlations between elliptic and triangular flow
Higher-order v2-v3 cumulants reduce to expressions fixed by the mean elliptic flow from nuclear overlap geometry.
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Primordial fluctuations in heavy-ion collisions
A new model of energy density fluctuations in heavy-ion collisions, built from elementary 1/r^2 sources, reproduces CGC one- and two-point functions to leading-log accuracy and explains the centrality dependence of both elliptic and triangular flow.
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Effectiveness of nonflow suppression using multi-particle correlators
Toy models show multi-particle correlators can increase rather than reduce deviation from true flow harmonics in small collision systems.