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

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 $\eta$ meson, which is an important input to the direct photon signal extraction, has been determined in the $\eta \rightarrow 2\gamma$ channel for p+C collisions at $\sqrt{s_\mathrm{NN}} = 17.4\mathrm{GeV}$.
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http://hal.in2p3.fr/in2p3-00871695
Contributor : Dominique Girod <>
Submitted on : Thursday, October 10, 2013 - 11:17:52 AM
Last modification on : Wednesday, December 2, 2020 - 12:04:03 PM

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M.M. Aggarwal, T. Bernier, H. Delagrange, L. Luquin, Gines Martinez Garcia, et al.. Photon and Eta Production in p+Pb and p+C Collisions at sqrt{sNN} = 17.4 GeV. Nuclear Physics A, Elsevier, 2013, 898, pp.14-23. ⟨10.1016/j.nuclphysa.2012.11.010⟩. ⟨in2p3-00871695⟩

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