Quark number scaling of $v_2$ in transverse kinetic energy and it's implications for coalescence models

Abstract

We find that a simple extension of the coalescence model is sufficient to incorporate the perfect quark number scaling behavior of the elliptic flow in transverse kinetic energy, recently discovered by the PHENIX Collaboration. The flavor dependence of the elliptic flow can be consistently described in the low and intermediate $p_T$ if the transverse kinetic energy is conserved in the $2\to 1$ or $3\to 1$ parton coalescence process at the hadronization. Thus suggesting the quark coalescence as a possible hadronization mechanism at low $p_T$ as well.

arXiv comment4 pages and 3 figures, accepted by PRC rapid comm(Added one figure)

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• Scaling of Elliptic Flow, Recombination and Sequential Freeze-Out of Hadrons in Heavy-Ion Collisions
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• Investigating the NCQ scaling of elliptic flow at LHC with a multiphase transport model
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• Studying freeze-out and hadronization in the Landau hydrodynamical model
• $D^0$-Meson $R_{AA}$ in PbPb Collisions at $\sqrt{s_{NN}}$ = 5.02 TeV and Elliptic Flow in pPb Collisions at $\sqrt{s_{NN}}$ = 8.16 TeV with CMS
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