CERN Accelerating science

Article
Report number arXiv:1412.7902
Title Direct photon and neutral pion production in pp and Pb-Pb collisions measured with the ALICE experiment at LHC
Author(s) Peressounko, Dmitri (Kurchatov Inst., Moscow)
Collaboration for the ALICE collaboration
Publication 2015
Imprint 26 Dec 2014
Number of pages 8
Note Comments: Proceedings of XXXth International Workshop on High Energy Physics, Protvino, Russia, 23-27/06/2014, 8 pages
Proceedings of XXXth International Workshop on High Energy Physics, Protvino, Russia, 23-27/06/2014, 8 pages
In: 30th International Workshop on High Energy Physics "Particle and Astroparticle Physics, Gravitation and Cosmology: Predictions, Observations and New Projects", IHEP, Protvino, Russia, 23 - 27 Jun 2014, pp.181-188
DOI 10.1142/9789814689304_0028
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Abstract Measurements of direct photon and neutral pion production in heavy-ion collisions provide a comprehensive set of observables characterizing properties of the hot QCD medium. Direct photons provide means to test the initial stage of an AA collision and carry information about the temperature and space-time evolution of the hot medium. Neutral pion suppression probes the parton energy loss in the hot medium. Measurements of neutral meson spectra in pp collisions at LHC energies $\sqrt{s}=$0.9, 2.76, 7 TeV serve as a reference for heavy-ion collisions and also provide valuable input data for parameterization of the QCD parton Fragmentation Functions. In this talk, results from the ALICE experiment on direct photon and neutral pion production in pp and Pb-Pb collisions are summarized.
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 Record creato 2014-12-30, modificato l'ultima volta il 2021-07-16


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