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arXiv · 0907.4457

Measurement of $π^{0}$ and $γ$ in d+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV by PHENIX experiment

Ondrej Chvala
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Abstract

Previous results indicated that high $p_T$ particle suppression in Au+Au interactions is a final state effect, since R$_{dA}$ ratios were compatible with unity, albeit within large experimental errors. It is important to test this conclusion to higher precision since the modification of structure functions may be involved. Recent d+Au data taken in 2008 improve the integrated luminosity by about a factor of thirty compared to the 2003 data. A more precise measurement of both $π^0$ and $γ$ at higher $p_T$ will shed new light on whether the initial state in the heavy nuclei is modified.

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Ondrej Chvala. 2009-09-30. Measurement of $π^{0}$ and $γ$ in d+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV by PHENIX experiment. https://doi.org/10.1016/j.nuclphysa.2009.10.110

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