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 pT. Since jets are more influential at LHC than at RHIC, the v2 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-pT part of the elliptic flow of pions and light baryons, and work toward the fulfillment of the NCQ scaling.
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