What can we Learn With Light Neutral Probes in the ALICE Experiment?

The ALICE experiment has measured inclusive π0 and η meson production spectra in a wide $p_T$ range at mid-rapidity in pp collisions from $\sqrt {s}$=0.9 to 13 TeV, p-Pb collisions at $\sqrt {s_{NN}}$=5.02, as well as Pb-Pb collisions at $\sqrt {s_{NN}}$=2.76 and 5.02 TeV. The direct photon pT spectra and double ratios Rγ have been measured by the ALICE collaboration in Pb-Pb collisions at $\sqrt {s_{NN}}$=2.76 TeV, in pp collisions at $\sqrt {s}$=8 TeV and in p-Pb collisions at $\sqrt {s_{NN}}$=5.02 TeV. Isolated spectra have beeen measured in pp collisions at $\sqrt {s}$=7 TeV and in p-Pb collisions at $\sqrt {s_{NN}}$=5.02 TeV.