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That being said, I don't know the field inside-out and I'm sure some theorist has come up with some wacky idea that allows it. Neutrinos I wound up spending several thousand dollars on signal terminators to swallow the echo downstairs. Once Again, Physicists Debunk Faster-Than-Light Neutrinos It would mean that the antineutrino emitted by one nucleus could, hypothetically, be absorbed (as a neutrino) by the other nucleus, and youd be able to get a decay where: There are currently multiple experiments, including the MAJORANA experiment, looking specifically for this neutrinoless double beta decay. I suspect that the syncronization used in the GPS is in the same as in the above paper and not as Einstein did. Is there a generic term for these trajectories? The OPERA experiment data showed neutrinos arriving at the detector surprisingly quickly, supposedly traveling faster than the speed of light. Do neutrinos travel faster than the speed of light? Weve measured neutrinos and antineutrinos produced by cosmic rays that interact with our atmosphere. There is no 'T=0', and no single firing of neutrinos. Until i hear or read any counter-claims to that paper, i'll consider this to be a settled matter. The OPERA team later discovered a faulty piece of equipment (a cable) was responsible for the timing mismatch. If there were no oscillations due to matter interacting with radiation in the Universe, there would [+] be no scale-dependent wiggles seen in galaxy clustering. Its just odd, says McFarland. proceeds through the weak interactions, converting a neutron into a proton, electron, and an anti-electron neutrino. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Science at its best. Other proposals could accommodate faster-than-light travel with violating this principle of relativity, says Lee Smolin, a theoretical physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada. The neutrino might not actually be travelling as far as they think if space/time is contracted at one or more points along the path where gravity varies. I will bet all my beans into the idea that they didn't estimate the spacetime curvature inside the earth well and over the beam trajectory, and what they actually discovered is a great way to measure space-time inside the Earth. Well "possible," yes, but kind of like how tunneling through a brick wall is "possible": while you can't definitively prove it impossible, you'd feel pretty safe saying "this will never happen." General: The neutrino as a tachyon by A. Chodos et al. The OPERA Experiment and the Value of High-Profile Scientific In the pic Sat A must be synchronized with C at the same time thru the shortest red path and thru the longest blue path. The Special Theory of Relativity (STR) of Einstein, through the principle of the speed limit, makes the magnetic force come from the electric one and the magnetic force is an electric force, as physicists know; an easy demonstration of that can be found in chapter 3 of my file at the following link (also English inside): http://www.fisicamente.net/FISICA_2/UNIFICAZIONE_GRAVITA_ELETTROMAGNETISMO.pdf. The mumblings that begin a few months after the initial report, that a loose cable caused a timing chain error, have been accepted by the experimenters. A claim that neutrinos traveled faster than the speed of light would be revolutionary if true, but "I would bet against it," physicist says. Other experiments in the same neutrino beam (and elsewhere around the world) were unable to replicate the anomaly. Weve measured neutrinos produced by the Sun. [+] It was the closest observed supernova to Earth in more than three centuries, and the neutrinos that arrived from it came in a burst lasting about ~10 seconds: equivalent to the time that neutrinos are expected to be produced. How do we reverse the trend? What are neutrinos? | Space Do neutrinos violate the symmetries of physics? FTL OTOH is not just extremely improbable, but forbidden by the currently known laws of physics. Read about our approach to external linking. I was quite surprised to read this all over the news today: Elusive, nearly massive subatomic particles called neutrinos appear to travel just faster than light, a team of physicists in Europe reports. "That makes sense," we say, and send the start time and the stop time down to our colleagues on Earth, who take one look at our numbers and freak out.