Newswire: 27 March 2013 - INFN - OPERA observed a third neutrino tau

The OPERA international experiment at the INFN Gran Sasso Laboratory (Italy) has observed a third neutrino tau candidate from "flavour" oscillation. The "muon-type" neutrino produced at CERN in Geneva arrived at the Gran Sasso laboratory as a "tau" neutrino. An extremely rare event observed only twice before, in 2010 and in 2012. The OPERA international experiment (involving 140 physicists from 28 research institutes in 11 countries) was set up for the specific purpose of discovering this except...