Linear and cubic response to the initial eccentricity in heavy-ion collisions

Jacquelyn Noronha-Hostler, Li Yan, Fernando G. Gardim, Jean Yves Ollitrault

Research output: Contribution to journalArticlepeer-review


We study the relation between elliptic flow, v2, and the initial eccentricity, 2, in heavy-ion collisions, using hydrodynamic simulations. Significant deviations from linear eccentricity scaling are seen in more peripheral collisions. We identify the mechanism responsible for these deviations as a cubic response, which we argue is a generic property of the hydrodynamic response to the initial density profile. The cubic response increases elliptic flow fluctuations, thereby improving agreement of initial condition models with experimental data.

Original languageEnglish (US)
Article number014909
JournalPhysical Review C
Issue number1
StatePublished - Jan 22 2016
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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