On behalf of OPERA, LVD, ICARUS and Borexino located at Gran Sasso, Sergio Bertolucci, Research Director at CERN, has reported the results from CERN on a neutrino time of flight to the INFN Gran Sasso Laboratory, at the 25th International Conference on Neutrino Physics and Astrophysics in Kyoto.
The four experiments, OPERA, LVD, ICARUS and Borexino, measure the time of flight of neutrinos consistent with light speed. This is different from a measurement put up for study by the OPERA collaboration last September, signifying that the original OPERA measurement is attributable to a defective component of the fiber optic timing system of the experiment.
Bertolucci informed that even though this outcome is not the desirable result, it is the one that was ultimately anticipated. The story reflected the public opinion, and has provided people the chance to observe the scientific technique in action. An unanticipated outcome was set for analysis, studied in detail and settled in part as a result of partnership between usually competing experiments. This is the way science gets advanced.
In another advancement presented in Kyoto, the OPERA experiment demonstrated a proof for the presence of a second tau-neutrino in the CERN muon-neutrino beam, marking a significant progress to understand the science of neutrino oscillations.