Stathes Paganis2018-09-102018-09-102015http://scholars.lib.ntu.edu.tw/handle/123456789/394365[SDGs]SDG7Observation of top-quark pair production in association with a photon and measurement of the $t\\bartγ$ production cross section in pp collisions at $\\sqrts=7$ TeV using the ATLAS detectorjournal article10.1103/PhysRevD.91.072007