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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.
European physical journal. C, Particles and fields, 12/2015, Letnik: 75, Številka: 12Journal Article
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.
