Study of the neutral mesons in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV in the ALICE experiment at LHC

Abstract

The ${\pi }^0$ and $\eta$ meson production in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV is studied with the ALICE experiment at the LHC. The ${\pi }^0$ invariant yields and nuclear modification factor $R_{\mbox{AA}}$ are presented here in six centrality classes. The results are a combined measurement using the Photon Conversion Method (PCM) and the PHOS detector, in the transverse momentum range 0.4 $< p_{\mbox{T}} <$ 12 GeV/$c$. The ${\pi }^0$ $R_{\mbox{AA}}$ is studied in different centrality classes and compared with results from experiments at lower energies, both as a function of transverse momentum. The $\eta$ meson production is studied using the PCM and the EMCal detector. The combination of the individual results will make possible the measurement of the $\eta$ differential invariant cross section as a function of transverse momentum from 1 to 22 GeV/$c$ in different centrality classes.

4 pages, 3 figures, proceedings for the Hot Quarks 2014 workshop, Las Negras, Cabo de Gata Natural Park, Andalusia, Spain

References in corpus (7)

• Glauber Modeling in High Energy Nuclear Collisions
• Performance of the ALICE Experiment at the CERN LHC
• A light-cone wavefunction approach to open heavy flavor dynamics in QCD matter
• The PHOBOS Glauber Monte Carlo
• Neutral pion production at midrapidity in pp and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Quenching of high-pT hadrons: Energy Loss vs Color Transparency
• Suppression of High-p_T Neutral Pion Production in Central Pb+Pb Collisions at sqrt{s_NN} = 17.3 GeV Relative to p+C and p+Pb Collisions