Observation of a New ¿b State in Radiative Transitions to ¿(1S) and ¿(2S) at ATLAS

G. Aad, Mogens Dam, Nele Maria Philomena Boelaert, Jørgen Beck Hansen, Peter Henrik Hansen, John Renner Hansen, Jørn Dines Hansen, Simon Johann Franz Heisterkamp, Morten Dam Jørgensen, Esben Bryndt Klinkby, Sascha Mehlhase, Björn Stefan Nilsson, Troels Christian Petersen, Ask Emil Løvschall-Jensen, Stefania Xella