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Neutral meson and photon production at the LHC measured with the ALICE experiment

The LHC provided pp collisions in the energy range $\sqrt{s}=0.9$ to $13$ TeV , p-Pb collisions at $\sqrt{\mathrm{S_{NN}}}=5.02$ and $8$ TeV , as well as Pb-Pb collisions at $\sqrt{\mathrm{S_{NN}}}=2.76$ and $5.02$ TeV. Neutral meson production spectra and their ratios $\eta/ \pi^0$ as well as photo...

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Detalles Bibliográficos
Autor principal: Matyja, A
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysbps.2018.12.018
http://cds.cern.ch/record/2667549
Descripción
Sumario:The LHC provided pp collisions in the energy range $\sqrt{s}=0.9$ to $13$ TeV , p-Pb collisions at $\sqrt{\mathrm{S_{NN}}}=5.02$ and $8$ TeV , as well as Pb-Pb collisions at $\sqrt{\mathrm{S_{NN}}}=2.76$ and $5.02$ TeV. Neutral meson production spectra and their ratios $\eta/ \pi^0$ as well as photon double ratio $R_{\gamma}$ and direct photon spectra have been measured in a wide $p_{\mathrm{T}}$ range at mid-rapidity by the ALICE experiment. Photons are registered in ALICE electromagnetic calorimeters, EMCal and PHOS or reconstructed from $e^+ e^−$ pairs when photons converted in the material of the inner barrel detectors (TPC and ITS). The $\pi^0$ and $\eta$ mesons are reconstructed via invariant mass technique with several complementary methods. The overview of the recent results from ALICE on the photon and meson production is presented.