Neutral meson production in pp and Pb-Pb collisions at LHC

Abstract

The ALICE detector at the LHC studies ${\pi }^0$ and $\eta$ meson production by two complementary methods, using electromagnetic calorimeters and the central tracking system for converted photons. Production spectra of ${\pi }^0$ and $\eta$ mesons were measured with ALICE in pp collisions at LHC energies at mid-rapidity in a wide transverse momentum range. The spectrum and the nuclear modification factor $R_{AA}$ of ${\pi }^0$ measured in Pb-Pb collisions at different centralities, show a clear pattern of strong suppression in a hot QCD medium with respect to pp collisions.

4 pages, 4 figures

References in corpus (3)

• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Neutral pion and $\eta$ meson production in proton-proton collisions at $\sqrt{s}=0.9$ TeV and $\sqrt{s}=7$ TeV
• Global Analysis of Fragmentation Functions for Eta Mesons

Cited by in corpus (2)

• Electromagnetic effects in the pion dispersion relation at finite temperature
• Finite size effects in the thermodynamics of a free neutral scalar field