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arXiv · 1509.02692

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

L. V. Bravina·E. S. Fotina·V. L. Korotkikh·I. P. Lokhtin·L. V. Malinina·E. N. Nazarova·S. V. Petrushanko·A. M. Snigirev·E. E. Zabrodin
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Abstract

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.

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L. V. Bravina, E. S. Fotina, V. L. Korotkikh, I. P. Lokhtin, L. V. Malinina, E. N. Nazarova, S. V. Petrushanko, A. M. Snigirev, E. E. Zabrodin. 2015-11-06. Anisotropic flow fluctuations in hydro-inspired freeze-out model for relativistic heavy ion collisions. https://doi.org/10.1140/epjc%2Fs10052-015-3815-9

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