Journal
PHYSICAL REVIEW C
Volume 90, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.90.024903
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Funding
- European Research Council under the Advanced Investigator [ERC-AD-267258]
- Office of Science, of the US Department of Energy
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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.
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