Scientists working at the super collider that measured neutrinos seeming to beat Einstein’s cosmic light speed barrier a few months ago say they have uncovered at least two issues with the high-tech gear used to clock the speedy particles. It could boil down to faulty wiring:
(BBC) — On the one hand, the team said there is a problem in the “oscillator” that provides a ticking clock to the experiment in the intervals between the synchronisations of GPS equipment. This is used to provide start and stop times for the measurement as well as precise distance information. That problem would increase the measured time of the neutrinos’ flight, in turn reducing the surprising faster-than-light effect. … But the team also said they found a problem in the optical fibre connection between the GPS signal and the experiment’s main clock. In contrast, the team said that effect would increase the neutrinos’ apparent speed.