Influence of jets and resonance decays on the constituent quark scaling of elliptic flow

Abstract

The Monte Carlo HYDJET++ model, that contains both hydrodynamic state and jets, is applied to study the influence of the interplay between soft and hard processes on the formation of the elliptic flow in heavy-ion collisions at RHIC and LHC energies. Jets are found to cease the hydro-like increase of the elliptic flow with rising p_T. Since jets are more influential at LHC than at RHIC, the v_2 at LHC should be weaker than that at RHIC. Violation of the number-of-constituent-quark (NCQ) scaling is predicted. The decays of resonances are found to enhance the low-p_T part of the elliptic flow of pions and light baryons, and work toward the fulfillment of the NCQ scaling.

6 pages, talk given at the International Conference on Strangeness in Quark Matter 2009 (SQM09)

References in corpus (14)

• Elliptic Flow of Identified Hadrons in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at s(NN)**(1/2) = 200-GeV
• A model of jet quenching in ultrarelativistic heavy ion collisions and high-pt hadron spectra at RHIC
• Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu collisions at sqrt(s_NN) = 200 GeV
• Thermal Dileptons at LHC
• Heavy-Quark Kinetics in the QGP at LHC
• Heavy Ion Collisions at the LHC - Last Call for Predictions
• Heavy ion event generator HYDJET++ (HYDrodynamics plus JETs)
• Analysis of anisotropic flow with Lee-Yang zeroes
• A Fast Hadron Freeze-out Generator
• Fast hadron freeze-out generator, part II: noncentral collisions
• Hydrodynamic radial and elliptic flow in heavy-ion collisions from AGS to LHC energies
• Elliptic flow in nuclear collisions at the Large Hadron Collider
• Will jets reduce the elliptic flow at LHC, while decays of resonances restore the constituent quark scaling?

Cited by in corpus (6)

• Hexagonal flow v_6 as a superposition of elliptic v_2 and triangular v_3 flows
• Effect of jets on $v_4/v_2^2$ ratio and constituent quark scaling in relativistic heavy-ion collisions
• 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?
• Modeling net-charge fluctuations in heavy-ion collisions at the LHC
• HYDRO + JETS (HYDJET++) event generator for Pb+Pb collisions at LHC