Non-Gaussian eccentricity fluctuations - Archive ouverte HAL
Article Dans Une Revue Phys.Rev.C Année : 2016

Non-Gaussian eccentricity fluctuations

Résumé

We study the fluctuations of the anisotropy of the energy density profile created in a high-energy collision at the LHC. We show that the anisotropy in harmonic n has generic non-Gaussian fluctuations. We argue that these non-Gaussianities have a universal character for small systems such as p+Pb collisions, but not for large systems such as Pb+Pb collisions where they depend on the underlying non-Gaussian statistics of the initial density profile. We generalize expressions for the eccentricity cumulants ɛ2{4} and ɛ3{4} previously obtained within the independent-source model to a general fluctuating initial density profile.

Dates et versions

hal-01553974 , version 1 (03-07-2017)

Identifiants

Citer

Hanna Grönqvist, Jean-Paul Blaizot, Jean-Yves Ollitrault. Non-Gaussian eccentricity fluctuations. Phys.Rev.C, 2016, 94 (3), pp.034905. ⟨10.1103/PhysRevC.94.034905⟩. ⟨hal-01553974⟩
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