Standalone vertex finding in the ATLAS muon spectrometer by Aad, G, Abajyan, T, Abbott, B, Abdallah, J, Khalek, SA, Abdinov, O, Aben, R, Abi, B, Abolins, M, AbouZeid, O, Abramowicz, H, Abreu, H, Abulaitia, Y, Acharya, B, Adamczyka, L, Adams, D, Addy, T, Adelman, J, Adomeit, S, Adye, T, Aefsky, S, Agatonovic-Jovinb, T, Aguilar-Saavedra, J, Agustoni, M, Ahlen, S

Measurement of the centrality and pseudorapidity dependence of the integrated elliptic flow in lead-lead collisions at root S-NN=2.76 TeV with the ATLAS detector by Aad, G, Abbott, B, Abdallah, J, Khalek, SA, Abdinov, O, Aben, R, Abi, B, Abolins, M, AbouZeid, O, Abramowicz, H, Abreu, H, Abreu, R, Abulaiti, Y, Acharya, B, Adamczyk, L, Adams, D, Adelman, J, Adomeit, S, Adye, T, Agatonovic-Jovinb, T, Aguilar-Saavedraa, A, Agustoni, M, Ahlen, S, Ahmadov, F, Aielli, G