Related paper Direct photon elliptic flow in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV Comparison of the measured inclusive photon flow $(\vincg)$ to the individual PCM and PHOS measurements $(v_{2}^{\rm \gamma, ind})$ in the 0--20\[png] [pdf] [eps][png] [pdf] [eps]