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Collective flow of open and hidden charm in Au+Au collisions at $\sqrt{s}$ = 200 GeV

E. L. Bratkovskaya·W. Cassing·H. Stoecker·N. Xu
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Abstract

We study the collective flow of open charm mesons and charmonia in Au+Au collisions at $\sqrt{s}$ = 200 GeV within the hadron-string-dynamics (HSD) transport approach. The detailed studies show that the coupling of $D,\bar{D}$ mesons to the light hadrons leads to comparable directed and elliptic flow as for the light mesons. This also holds approximately for $J/Ψ$ mesons since more than 50% of the final charmonia for central and mid-central collisions stem from $D+\bar{D}$ induced reactions in the transport calculations. The transverse momentum spectra of $D,\bar{D}$ mesons and $J/Ψ$'s are only very moderately changed by the (pre-)hadronic interactions in HSD which can be traced back to the collective flow generated by elastic interactions with the light hadrons.

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E. L. Bratkovskaya, W. Cassing, H. Stoecker, N. Xu. 2005-02-10. Collective flow of open and hidden charm in Au+Au collisions at $\sqrt{s}$ = 200 GeV. https://doi.org/10.1103/physrevc.71.044901

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