Elliptic flow of thermal photons in heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

H. Holopainen, S. S. Räsänen, K. J. Eskola
2011 Physical Review C  
We calculate the thermal photon transverse momentum spectra and elliptic flow in √(s_NN) = 200 GeV Au+Au collisions at RHIC and in √(s_NN) = 2.76 TeV Pb+Pb collisions at the LHC, using an ideal-hydrodynamical framework which is constrained by the measured hadron spectra at RHIC and LHC. The sensitivity of the results to the QCD-matter equation of state and to the photon emission rates is studied, and the photon v_2 is discussed in the light of the photonic p_T spectrum measured by the PHENIX
more » ... ed by the PHENIX Collaboration. In particular, we make a prediction for the thermal photon p_T spectra and elliptic flow for the current LHC Pb+Pb collisions.
doi:10.1103/physrevc.84.064903 fatcat:bgvitu5qkfhv3jdcyxpcm2ynxe