Observation of $D^0$ meson nuclear modifications in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV

Abstract

We report the first measurement of charmed-hadron ($D^0$) production via the hadronic decay channel ($D^0\to K^{-}+{\pi }^{+}$) in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200\,GeV with the STAR experiment. The charm production cross-section per nucleon-nucleon collision at mid-rapidity scales with the number of binary collisions, $N_{bin}$, from $p$+$p$ to central Au+Au collisions. The $D^0$ meson yields in central Au+Au collisions are strongly suppressed compared to those in $p$+$p$ scaled by $N_{bin}$, for transverse momenta $p_T>3$ GeV/$c$, demonstrating significant energy loss of charm quarks in the hot and dense medium. An enhancement at intermediate $p_T$ is also observed. Model calculations including strong charm-medium interactions and coalescence hadronization describe our measurements.

7 pages including author list, 4 figures, submit to PRL with revised version

References in corpus (7)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Measurements of Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV
• ${\mathbf{D}}_{\mathbf{s}}$-Meson as Quantitative Probe of Diffusion and Hadronization in Nuclear Collisions
• A light-cone wavefunction approach to open heavy flavor dynamics in QCD matter
• Heavy-flavour spectra in high energy nucleus-nucleus collisions
• Collisional dissociation of heavy mesons in dense QCD matter
• Measurements of $\varphi$ meson production in relativistic heavy-ion collisions at RHIC

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