Direct photon elliptic flow in Pb–Pb collisions at √sNN = 2.76 TeV
Journal article
Authors | Barnby, Lee, Collaboration, ALICE and S., Acharya |
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Abstract | The elliptic flow of inclusive and direct photons was measured at mid-rapidity in two centrality classes 0–20% and 20–40% in Pb–Pb collisions at √sNN = 2.76 TeV by ALICE. Photons were detected with the highly segmented electromagnetic calorimeter PHOS and via conversions in the detector material with the e+e− pairs reconstructed in the central tracking system. The results of the two methods were combined and the direct-photon elliptic flow was extracted in the transverse momentum range 0.9<pT<6.2GeV/c. A comparison to RHIC data shows a similar magnitude of the measured direct-photon elliptic flow. Hydrodynamic and transport model calculations are systematically lower than the data, but are found to be compatible. |
Keywords | quark gluon plasma |
Year | 2018 |
Journal | Physics Letters B |
Journal citation | 789, pp. 308-322 |
Publisher | Elsevier |
ISSN | 03702693 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.physletb.2018.11.039 |
Web address (URL) | http://hdl.handle.net/10545/623654 |
http://creativecommons.org/licenses/by/4.0/ | |
hdl:10545/623654 | |
Publication dates | 19 Nov 2018 |
Publication process dates | |
Deposited | 10 Apr 2019, 13:22 |
Accepted | 10 Feb 2019 |
Rights | © 2018 The Author. Published by Elsevier B.V. |
Contributors | STFC Daresbury Laboratory |
File | File Access Level Open |
https://repository.derby.ac.uk/item/948qw/direct-photon-elliptic-flow-in-pb-pb-collisions-at-snn-2-76-tev
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