Feeds

Neutrinos still FASTER THAN LIGHT in second test

Take that, Einstein

Intelligent flash storage arrays

The boffins who sent sub-atomic particles on a faster-than-light journey into the past have done another successful experiment that confirms the results.

In the original test, 15,000 beams of neutrinos were fired over three years from CERN near Geneva 720km to Gran Sasso in Italy and the particles arrived at their destination 60 nanoseconds faster than they would have it they'd travelled at the speed of light.

In the scientific brouhaha that followed the results going public in September, critics suggested that the beams of neutrinos were rather long, around ten nanoseconds, so margin for error in measuring the time of arrival was quite high.

The researchers determined to present the world with a new physical reality outside of Einstein's theory of general relativity have now sent shorter pulses to improve measurement accuracy.

The new beams were three nanoseconds long and the test left gaps of 524 nanoseconds between them, but they still confirmed the results of the first experiment.

The OPERA (Oscillation Project with Emulsion-tRacking Apparatus) scientists published their results today on arXiv.org.

"A measurement so delicate and carrying a profound implication on physics requires an extraordinary level of scrutiny," Fernando Ferroni, president of Italian Institute for Nuclear Physics (INFN), said in a release on the results.

"The experiment OPERA, thanks to a specially adapted CERN beam, has made an important test of consistency of its result. The positive outcome of the test makes us more confident in the result, although a final word can only be said by analogous measurements performed elsewhere in the world."

Jacques Martino, director of France's National Institute of Nuclear and Particle Physics (CNRS), said another possible error of the experiment, that the clocks at CERN and Gran Sasso were on an ever so slightly different time due to gravitational time dilation, could also be investigated soon.

"One of the eventual systematic errors is now out of the way, but the search is not over. They are more checks of systematics currently under discussion, one of them could be a synchronisation of the time reference at CERN and Gran Sasso independently from the GPS, using possibly a fibre," he said.

Einstein's theory of general relativity allows for time passing at different rates in regions of different gravitational potential. The differences are small, measured in nanoseconds, but could still account for the faster-than-light results. ®

Intelligent flash storage arrays

More from The Register

next story
Antarctic ice THICKER than first feared – penguin-bot boffins
Robo-sub scans freezing waters, rocks warming models
I'll be back (and forward): Hollywood's time travel tribulations
Quick, call the Time Cops to sort out this paradox!
Your PHONE is slowly KILLING YOU
Doctors find new Digitillnesses - 'text neck' and 'telepressure'
Reuse the Force, Luke: SpaceX's Elon Musk reveals X-WING designs
And a floating carrier for recyclable rockets
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
Rosetta science team thinks Philae might come to life in the spring
And disclose the biggest surprise of Comet 67P
Bond villains lament as Wicked Lasers withdraw death ray
Want to arm that shark? Better get in there quick
prev story

Whitepapers

10 ways wire data helps conquer IT complexity
IT teams can automatically detect problems across the IT environment, spot data theft, select unique pieces of transaction payloads to send to a data source, and more.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
How to determine if cloud backup is right for your servers
Two key factors, technical feasibility and TCO economics, that backup and IT operations managers should consider when assessing cloud backup.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.