A search for t(t)over-bar resonances using lepton-plus-jets events in proton-proton collisions at root s=8 TeV with the ATLAS detector - Atlas Collaboration; Barreiro Alonso, Fernando; Cantero Garcia, Josu; Peso Malagon, Jose Del; Glasman Kuguel, Claudia Beatriz; Llorente Merino, Javier; Terron Cuadrado, Juan (Journal Of High Energy Physics, 2015)