B. H. Brusheim Johansson

Hexagonal flow v6 as a superposition of elliptic v2 and triangular v3 flows

1/2 2 {�2} in the elliptic flow plane, �2, is predicted in the range 1 ≤ pt ≤ 4 GeV/c for semicentral and semiperipheral collisions. Jets increase this ratio by about 10% and also cause its rise at pt ≥ 3.5 GeV/c. The part of v6 coming from v2 is instantly increasing as the reaction becomes more peripheral, whereas the contribution of v3 to v6 drops. This behavior explains the experimentally observed increase of correlations between second and sixth harmonics and the decrease of correlations between third and sixth harmonics with rising impact parameter b. Our study favors the idea that basic features of the hexagonal flow can be understood in terms of the interplay of elliptic and triangular flows.

Effect of jets on the v4/v22 ratio, and constituent quark scaling in relativistic heavy-ion collisions

The Monte Carlo HYDJET++ model, that combines parametrized hydrodynamics with jets, is employed to study formation of second v_2 and fourth v_4 components of the anisotropic flow in ultrarelativistic heavy-ion collisions at energies of the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC), sqrt{s}=200 AGeV and sqrt{s}=2.76 ATeV, respectively. It is shown that the quenched jets contribute to the soft part of the v_2(p_T) and v_4(p_T) spectra. The jets increase the ratio v_4/v_2^2 thus leading to deviations of the ratio from the value of 0.5 predicted by the ideal hydrodynamics. Together with the event-by-event fluctuations, the influence of jets can explain quantitatively the ratio v_4/v_2^2 at p_T < 2 GeV/c for both energies and qualitatively the rise of its high-p_T tail at LHC. Jets are also responsible for violation of the number-of-constituent-quark (NCQ) scaling at LHC despite the fact that the scaling is fulfilled for the hydro-part of particle spectra.

Influence of jets and decays of resonances on the triangular flow in ultrarelativistic heavy-ion collisions

Triangular flow

HYDRO + JETS (HYDJET++) event generator for Pb+Pb collisions at LHC

v_3

Features of triangular flow of strange and non-strange hadrons at LHC

of identified and inclusive particles in Pb+Pb collisions at

Novel Developments of HYDJET++ Model for Ultra-relativistic Heavy-Ion Collisions

\sqrt{s_{NN}} = 2.76

HYDJET++ for ultra-relativistic HIC’s: A hot cocktail of hydrodynamics, resonances and jets

TeV is studied as a function of centrality and transverse momentum within the \textsc{hydjet++} model. The model enables one to investigate the influence of both hard processes and final-state interactions on the harmonics of particle anisotropic flow. Decays of resonances are found to increase the magnitude of the

Higher harmonics of azimuthal anisotropy in relativistic heavy-ion collisions in HYDJET++ model

v_3(p_{\rm T})

Is hexagonal flow ν6 just a superposition of elliptic ν2 and triangular ν3 flows

distributions at

Influence of jets and final-state interactions on the triangular flow in ultrarelativistic heavy-ion collisions

p_{\rm T} \geq 2