Searches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at ?s = 8 Tev - The ATLAS collaboration; Aad G; Abbott B; Abdallah J; Abdel Khalek S; Abdinov O; Aben R; Abi B; Abolins M; AbouZeid OS; Abramowicz H; Abreu H; et al. (Journal Of High Energy Physics, 2015)