Direct photon elliptic flow in Pb–Pb collisions √sNN = 2.76 TeV
ALICE Collaboration. (2019). Direct photon elliptic flow in Pb–Pb collisions √sNN = 2.76 TeV. Physics Letters B, 789, 308-322. https://doi.org/10.1016/j.physletb.2018.11.039
Julkaistu sarjassa
Physics Letters BTekijät
Päivämäärä
2019Tekijänoikeudet
© 2018 The Author.
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 < 6.2 GeV/c. A comparison to RHIC data shows a similar magnitude of the measured directphoton elliptic flow. Hydrodynamic and transport model calculations are systematically lower than the
data, but are found to be compatible.
Julkaisija
Elsevier B.V.ISSN Hae Julkaisufoorumista
0370-2693Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/28870075
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