Neutrino experiment replicates faster-than-light finding. Physicists have replicated the finding that the subatomic particles called neutrinos seem to travel faster than light. It is a remarkable confirmation of a stunning result, yet most in the field remain sceptical that the ultimate cosmic speed limit has truly been broken. The collaboration behind the experiment, called OPERA (Oscillation Project with Emulsion-tracking Apparatus), made headlines in September with its claim that a beam of neutrinos made the 730-kilometre journey from CERN, Europe's particle-physics lab near Geneva in Switzerland, to the Gran Sasso National Laboratory near L'Aquila, Italy, faster than the speed of light.
The result defies Albert Einstein’s special theory of relativity, which states that this cannot happen. Neutrinos — here betraying their presence by interacting with other particles — are elusive and, it would seem, impossibly speedy. Once again, the neutrinos would beat a light beam to Gran Sasso by 60 nanoseconds. Finding puts brakes on faster-than-light neutrinos. Home.kpn.nl/vanelburg30/Papers/RAJvanElburg_TimeOfFlight_Preprint.pdf. Superluminal motion. Superluminal motion In astronomy, superluminal motion is the apparently faster-than-light motion seen in some radio galaxies, quasars and recently also in some galactic sources called microquasars.
All of these sources are thought to contain a black hole, responsible for the ejection of mass at high velocities. When first observed in the early 1970s, superluminal motion was taken to be a piece of evidence against quasars having cosmological distances. Although a few astrophysicists still argue in favor of this view, most believe that apparent velocities greater than the velocity of light are optical illusions and involve no physics incompatible with the theory of special relativity.
Explanation[edit] This phenomenon is caused because the jets are travelling very near the speed of light and at a very small angle towards the observer. Superluminal motion is often seen in two opposing jets, one moving away and one toward Earth. Some contrary evidence[edit] Signal velocity[edit] from point B. If.