Eccentricity distributions in nucleus-nucleus collisions - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Physics Letters Year : 2014

Eccentricity distributions in nucleus-nucleus collisions


We propose a new parametrization of the distribution of the initial eccentricity in a nucleus-nucleus collision at a fixed centrality, which we name the Elliptic Power distribution. It is a two-parameter distribution, where one of the parameters corresponds to the intrinsic eccentricity, while the other parameter controls the magnitude of eccentricity fluctuations. Unlike the previously used Bessel- Gaussian distribution, which becomes worse for more peripheral collisions, the new Elliptic Power distribution fits several Monte Carlo models of the initial state for all centralities.
Fichier principal
Vignette du fichier
1405.6595v2.pdf (401.49 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

cea-01323620 , version 1 (30-05-2016)



Li Yan, Jean-Yves Ollitrault, Arthur M. Poskanzer. Eccentricity distributions in nucleus-nucleus collisions. Physics Letters, 2014, 90 (02), ⟨10.1103/PhysRevC.90.024903⟩. ⟨cea-01323620⟩
248 View
315 Download



Gmail Facebook X LinkedIn More