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We report measurements of charmed hadron production from hadronic($D^{0}\rightarrow K\pi$) and semileptonic ($\mu$ and $e$) decays in 200 GeVAu+Au collisions at RHIC. Analysis of the spectra indicates that charmedhadrons have a different radial flow pattern from light or multi-strangehadrons. Charm cross sections at mid-rapidity are extracted by combining thethree independent measurements, covering the transverse momentum range thatcontributes to $\sim$90% of the integrated cross section. The cross sectionsscale with number of binary collisions of the initial nucleons, a signature ofcharm production exclusively at the initial impact of colliding heavy ions. Theimplications for charm quark interaction and thermalization in the stronglyinteracting matter are discussed.

Charmed hadron production at low transverse momentum in Au+Au collisions at RHIC