Open charm production in $\sqrt{s_{NN}}$=200 GeV Au+Au collisions

Details Open charm production in $\sqrt{s_{NN}}$=200 GeV Au+Au collisions Open charm production in $\sqrt{s_{NN}}$=200 GeV Au+Au collisions

2006-07-10

arxiv.org/abs/nucl-ex/0607011v2

J.Phys. G32 (2006) S529-S532

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 2 figures, presentation at Strangeness in Quark Matter 2006, accepted for publication by Journal of Physics G

Scientific paper

10.1088/0954-3899/32/12/S70

We report on the measurement of D meson production from the analysis of their hadronic ($D^0\to K\pi$) and semileptonic ($D\to \mu+X$, $D\to e+X$) decays in $\sqrt{s_{NN}}$=200 GeV Au+Au collisions. The transverse momentum ($p_T$) spectra and the nuclear modification factors for $D^0$ and for electron/muon from charm semileptonic decays will be presented. The differential cross section $d\sigma/dy$ is found to be consistent with the number of binary scaling. The blast-wave fit suggests that the charm hadron freeze out earlier than other light flavor hadrons.

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