BBC News – Neutrino experiment repeat at Cern finds same result
The team behind the finding in September that neutrinos may travel faster than light has carried out an improved version of their experiment – and found the same result.
If confirmed by other experiments, the find could undermine one of the basic principles of modern physics.
Critics of the first report had said that the long bunches of neutrinos used could introduce an error into the test.
The new work, posted to the Arxiv repository, used much shorter bunches.
It has been submitted to the Journal of High Energy Physics, but has not yet been reviewed by the scientific community.
The experiments have been carried out by the Opera collaboration – short for Oscillation Project with Emulsion-tRacking Apparatus.