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Neutral pion production in d-Au collisions at \sqrt{s_{NN}} = 200 GeV

Authors:	A Mischke

Institution:	(1) Department of Subatomic Physics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands

Abstract:	In this paper, preliminary results are presented on high $p_{\rm T}$ inclusive neutral pion measurements in d-Au collisions at $\sqrt{s_{\rm NN}} = 200$ GeV in the pseudo-rapidity range $0 < \eta < 1$ . Photons from the decay $\pi^0\rightarrow\gamma\gamma$ are detected in the Barrel Electromagnetic Calorimeter of the STAR experiment at RHIC. The analysis of this first BEMC hadron measurement is described in detail. The results are compared to earlier RHIC findings. Furthermore, the obtained $\pi^{0}$ invariant differential cross sections show good agreement with next-to-leading order (NLO) perturbative QCD calculations. Arrival of the final proofs: 4 July 2005 PACS: 25.75.-q

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