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arXiv · 1001.3602

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

E. Zabrodin·L. Bravina·G. Eyyubova·I. Lokhtin·L. Malinina·S. Petrushanko·A. Snigirev
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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.

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E. Zabrodin, L. Bravina, G. Eyyubova, I. Lokhtin, L. Malinina, S. Petrushanko, A. Snigirev. 2010-01-20. Influence of jets and resonance decays on the constituent quark scaling of elliptic flow. https://doi.org/10.1088/0954-3899%2F37%2F9%2F094060

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