Bussone, Andrea [P:(DE-HGF)0] ; Conigli, Alessandro [P:(DE-HGF)0] ; Frison, Julien Francois [P:(DE-H253)PIP1095095] ; Herdoíza, Gregorio [P:(DE-HGF)0] ; Pena, Carlos ; Preti, David ; Sáez, Alejandro ; Ugarrio, Javier ; Alpha Collaboration [P:(DE-HGF)0]