They can “oscillate” or change identities, which means that the mu neutrinos produced at the LHC can turn into tauneutrinos which the OPERA detector is designed to measure.
Neutrinos are known to switch back and forth between their three observed types (electron, muon and tauneutrinos), and OPERA was originally designed to detect these shifts.
They can "oscillate" or change identities, which means that the mu neutrinos produced at the LHC can turn into tauneutrinos which the OPERA detector is designed to measure.