| Article | |
| Report number | arXiv:1810.03861 |
| Title | Direct photon elliptic flow in Pb-Pb collisions at $\sqrt{s_{_{\mathrm{NN}}}}=2.76$ TeV |
| Author(s) | Sas, Mike (Nikhef, Amsterdam ; Utrecht U.) |
| Collaboration | ALICE Collaboration |
| Publication | 2019-02 |
| Imprint | 2018-10-09 |
| Number of pages | 3 |
| Note | Proceedings Quark Matter 2018, Venice, Italy |
| In: | Nucl. Phys. A 982 (2019) 195-197 |
| In: | The 27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Venice, Italy, 13 - 19 May 2018, pp.195-197 |
| DOI | 10.1016/j.nuclphysa.2018.10.065 |
| Subject category | nucl-ex ; Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LHC ; ALICE |
| Abstract | The elliptic flow of inclusive and direct photons was measured by ALICE for central and semi-central Pb--Pb collisions at $\sqrt{s_{_{\mathrm{NN}}}}=2.76$ TeV. The photons were reconstructed using the electromagnetic calorimeter PHOS and the central tracking system. The inclusive photon flow reconstructed with both methods are combined and used to extract the direct photon flow, using a decay photon simulation and the direct photon excess R$_{\gamma}$, in the transverse momentum range $0.9 < p_\mathrm{T} < 6.2$ GeV/c. We find agreement to earlier results obtained at RHIC, and the theoretical predictions generally under-predict the results. |
| Copyright/License | © 2018 Published by Elsevier B.V. preprint: (License: CC-BY-4.0) publication: (License: CC-BY-NC-ND-4.0) |
Corresponding record in: Inspire
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