Direct photon elliptic flow in Pb-Pb collisions at s_NN=2.76 TeV
Abstract
The elliptic flow of inclusive and direct photons was measured by ALICE for central and semi-central Pb--Pb collisions at s_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 Rγ, in the transverse momentum range 0.9 < pT < 6.2 GeV/c. We find agreement to earlier results obtained at RHIC, and the theoretical predictions generally under-predict the results.
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.