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Posts Tagged ‘OPERA’

Faster-Than-Light Neutrinos Re-Tested: Same Result

November 18, 2011 1 comment

A fiercely contested experiment that appears to show the accepted speed limit of the Universe can be broken has yielded the same results in a re-run, European physicists said.

But counterparts in the United States said the experiment still did not resolve doubts and the Europeans themselves acknowledged this was not the end of the story.

On Sept. 23, the European team issued a massive challenge to fundamental physics by saying they had measured particles called neutrinos which traveled around six kilometers (3.75 miles) per second faster than the speed of light, determined by Einstein to be the highest velocity possible.

Full Story: http://news.discovery.com/space/faster-than-light-speed-neutrinos-re-run-111118.html#mkcpgn=rssnws1

Particles break light-speed limit

September 22, 2011 2 comments

An Italian experiment has unveiled evidence that fundamental particles known as neutrinos can travel faster than light. Other researchers are cautious about the result, but if it stands further scrutiny, the finding would overturn the most fundamental rule of modern physics — that nothing travels faster than 299,792,458 metres per second.

The experiment is called OPERA (Oscillation Project with Emulsion-tRacking Apparatus), and lies 1,400 metres underground in the Gran Sasso National Laboratory in Italy. It is designed to study a beam of neutrinos coming from CERN, Europe’s premier high-energy physics laboratory located 730 kilometres away near Geneva, Switzerland. Neutrinos are fundamental particles that are electrically neutral, rarely interact with other matter, and have a vanishingly small mass. But they are all around us — the Sun produces so many neutrinos as a by-product of nuclear reactions that many billions pass through your eye every second.

Full Story: http://www.nature.com/news/2011/110922/full/news.2011.554.html