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

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.

12 pages including 9 figures as EPS-files; prepared using LaTeX package for publication in the European Physical Journal C

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Cited by in corpus (12)

• Relative flow fluctuations as a probe of initial state fluctuations
• Cumulants and nonlinear response of high $p_T$ harmonic flow at $\sqrt{s_{NN}}=5.02$ TeV
• Influence of jets and decays of resonances on the triangular flow in ultrarelativistic heavy-ion collisions
• Dynamical vs geometric anisotropy in relativistic heavy-ion collisions: which one prevails?
• Jets and elliptic flow correlations at low and high transverse momenta in ultrarelativistic A+A collisions
• Charmed meson and charmonium production in PbPb collisions at the LHC
• Toward a description of the centrality dependence of the charge balance function in the HYDJET++ model
• Modeling net-charge fluctuations in heavy-ion collisions at the LHC
• Sub-leading flow modes in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV from HYDJET++ model
• Unraveling alignment pattern in high-energy particles via transverse momentum disbalance analysis
• HYDRO + JETS (HYDJET++) event generator for Pb+Pb collisions at LHC
• Nature of particles azimuthal anisotropy at low and high transverse momenta in ultrarelativistic A+A collisions