Anisotropic flow fluctuations in hydro-inspired freeze-out model for relativistic heavy ion collisions

作者：Bravina L V; Fotina E S; Korotkikh V L; Lokhtin I P; Malinina L V; Nazarova E N; Petrushanko S V; Snigirev A M; Zabrodin E E

来源：European Physical Journal C, 2015, 75(12): 588.

DOI：10.1140/epjc/s10052-015-3815-9

The LHC data on event-by-event harmonic flow coefficients measured in PbPb collisions at center-of-mass energy 2.76 TeV per nucleon pair are analyzed and interpreted within the HYDJET++ model. To compare the model results with the experimental data the unfolding procedure is employed. The essentially dynamical origin of the flow fluctuations in hydro-inspired freeze-out approach has been established. It is shown that the simple modification of the model via introducing the distribution over spatial anisotropy parameters permits HYDJET++ to reproduce both elliptic and triangular flow fluctuations and related to it eccentricity fluctuations of the initial state at the LHC energy.

• 出版日期2015-12-12