Charm production in the STAR experiment at RHIC

Suaide, A. A. P.
September 2005
European Physical Journal C -- Particles & Fields;Sep2005, Vol. 43 Issue 1-4, p193
Academic Journal
The single electron spectrum over a sufficiently broad $p_{\rm T}$ range provides an indirect measurement of charm and beauty production at RHIC energies. Heavy-quarks are produced in parton-parton scattering in the initial phase of the collision and thus provide important information about the initial configuration of the colliding nuclei. Even more important, the final state spectra reflect the interactions of these heavy partons with the medium and thus allow us to probe the properties of the hot and dense system created in heavy-ion collisions. We present preliminary measurements of electron and positron $p_{\rm T}$ spectra in pp and d + Au as well as preliminary elliptic flow measurements in Au + Au collisions at $\sqrt{s_{NN}} = 200$ GeV performed by the STAR experiment. We describe the measurement techniques used to discriminate electrons from hadrons and compare the results with theoretical calculations. PACS. 25.75.-q


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