Mapping the hydrodynamic response to the initial geometry in heavy-ion collisions
By F. Gardim, F. Grassi, M. Luzum, J. Ollitrault. 2011
261 citations recorded by the source corpus.
vn. We find that the common practice of using an r 2 weight in the definition of "n in general results in a poorer predictor of vn than when using r n weight, for n > 2. We similarly study the importance of additional properties of the initial state. For example, we show that in order to correctly predict v4 and v5 for non-central collisions, one must take into account nonlinear terms proportional to " 2 and "2"3, respectively. We find that it makes no difference whether one calculates the eccentricities over a range of rapidity, or in a single slice at z = 0, nor is it important whether one uses an energy or entropy density weight. This knowledge will be important for making a more direct link between experimental observables and hydrodynamic initial conditions, the latter being poorly constrained at present.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/65e1355e38d578591a1ec53e53bea590829ce908
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In Nuclear and High Energy Physics
Citations in the corpus
- Non linearities in the harmonic spectrum of heavy ion collisions with ideal and viscous hydrodynamics (2012, methodology): “This is roughly compatible with simulation results from event-by-event hydrodynamics [13, 14].”
- Heavy ions and string theory (2013, background): “ns account for the rms magnitudes p hv2 ni[26,27, 28,29], the uctuations in vn (i.e. P(vn)) [30,31,32], and the angular correlations between the harmonics of dierent orders (i.e. hcos(5#TAB#5 2#TAB#2 3#TAB#3)i) [33,34,35,36]. Further, the harmonic ows depend on transverse momentum, the centrality of”