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arXiv · 1108.5400

Photon and Eta Production in p+Pb and p+C Collisions at sqrt{sNN} = 17.4 GeV

WA98 Collaboration
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Abstract

Measurements of direct photon production in p+Pb and p+C collisions at $\sqrt{s_\mathrm{NN}} = 17.4\mathrm{GeV}$ are presented. Upper limits on the direct photon yield as a function of $p_\mathrm{T}$ are derived and compared to the results for Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 17.3$ GeV. The production of the $η$ meson, which is an important input to the direct photon signal extraction, has been determined in the $η\rightarrow 2γ$ channel for p+C collisions at $\sqrt{s_\mathrm{NN}} = 17.4\mathrm{GeV}$.

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WA98 Collaboration. 2012-11-02. Photon and Eta Production in p+Pb and p+C Collisions at sqrt{sNN} = 17.4 GeV. https://doi.org/10.1016/j.nuclphysa.2012.11.010

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