Transverse momentum dependence of eta meson suppression in Au+Au collisions at sqrt(s_NN) = 200 GeV

Abstract

New measurements by the PHENIX experiment at RHIC for eta production at midrapidity as a function of transverse momentum (p_T) and collision centrality in sqrt(s_NN) = 200 GeV Au+Au and p+p collisions are presented. They indicate nuclear modification factors (R_AA) that are similar both in magnitude and trend to those found in earlier pi^0 measurements. Linear fits to R_AA in the 5--20 GeV/c p_T region show that the slope is consistent with zero within two standard deviations at all centralities although a slow rise cannot be excluded. Having different statistical and systematic uncertainties the pi^0 and eta measurements are complementary at high p_T; thus, along with the extended p_T range of these data they can provide additional constraints for theoretical modeling and the extraction of transport properties.

427 authors, 7 pages, 6 figures, 3 tables. Submitted to Phys. Rev. C, Rapid Communications. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

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Cited by in corpus (21)

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• Heavy-ion collisions at the Large Hadron Collider: a review of the results from Run 1
• Measurement of transverse energy at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Single electron yields from semileptonic charm and bottom hadron decays in Au$+$Au collisions at $\sqrt{s_{NN}}=200$ GeV
• Production of omega mesons in p+p, d+Au, Cu+Cu, and Au+Au collisions at sqrt(s_NN)=200 GeV
• Formulation of transverse mass distributions in Au-Au collisions at 200 GeV/nucleon
• Azimuthal anisotropy of pi^0 and eta mesons in Au+Au collisions at sqrt(s_NN)=200 GeV
• Exploring the QCD landscape with high-energy nuclear collisions
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• Production of ${\pi }^0$ and $\eta$ mesons in U$+$U collisions at $\sqrt{s_{{}_{NN}}}=192$ GeV
• On the Nuclear Modification Factor at RHIC and LHC
• Charm- and Bottom-Quark Production in Au$+$Au Collisions at $\sqrt{s_{{}_{NN}}}$ = 200 GeV
• Measurability of phi, omega and rho mesons via di-electron decays in high-temperature states produced in heavy-ion collisions
• Femtoscopic results in Au+Au and p+p from PHENIX at RHIC
• Review on Heavy-Ion Physics
• Detail study of the medium created in Au+Au collisions with high $p_T$ probes by the PHENIX experiment at RHIC
• Cold nuclear matter effect measured with high pT hadrons and jets in 200GeV d+Au collisions in PHENIX
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