However, now this object is moving along the x direction at x = ct. The other is that c = v, which means that d = 0, or there is not spacetime distance. We and it are moving along a fourth dimension at the speed of light, even though we are at rest. The first is that the object is at rest with us, and so d = ct. There are two situations at either extreme. This leads to the curious observation that the faster something moves the shorter its spacetime distance is. Ignoring y and z and if something is moving along the x direction as x = vt then The speed of light is an invariant, where nothing can go faster than light because nothing can go slower than light. We might also think of them as being on a spacelike interval that recedes off to infinity instantly in the frame or gauge condition chosen. The vacuum state for the tachyon is removed by standard QFT techniques. These states are not physical and a constraint which removes them gives the elementary SO(24) SUGRA. The Regge poles m^2 = J^2 – n, n = 1 or 4 for open/closed strings, predicts an imaginary mass for a Tachyon with J = 0. Now I do not know what it means to measure an imaginary valued quantity. The neutrino mass would be imaginary valued.
The invariant mass is mc^2 = sqrt(E^2 – p^2), where this is negative for the tachyon. Read more on the Nature article here and on. We now want colleagues to check them independently.”Ī preprint of the OPERA results will be posted on the physics website. “We have checked and rechecked for anything that could have distorted our measurements but we found nothing. “We have high confidence in our results,” said Ereditato. If they are confirmed, we may be looking at a literal breakdown of the modern rules of physics as we know them! Still, other experiments are being planned elsewhere in an attempt to confirm these remarkable findings. Over 750 scientists from 22 countries around the world work there.Įreditato is confident in the results as they have been consistently measured in over 16,000 events over the past two years. Its subterranean location helps prevent experiment contamination from other sources of radiation, such as cosmic rays.
The experiment, called OPERA (Oscillation Project with Emulsion-tRacking Apparatus) is located in Italy’s Gran Sasso facility 1,400 meters (4,593 feet) underground and uses a complex array of electronics and photographic plates to detect the particle beams. Neutrinos are constantly zipping through space and can pass through solid material easily with little discernible effect… as you’ve been reading this billions of neutrinos have already passed through you!
Neutrinos are created naturally from the decay of radioactive materials and from reactions that occur inside stars. We now want colleagues to check them independently.” We have checked and rechecked for anything that could have distorted our measurements but we found nothing. “We are shocked,” said project spokesman and University of Bern physicist Antonio Ereditato. The implications of such a discovery are staggering, as it would effectively undermine Einstein’s theory of relativity and force a rewrite of the Standard Model of physics. Where light would have made the trip in 2.4 thousandths of a second, the neutrinos made it there 60 nanoseconds faster – that’s 60 billionths of a second – a tiny difference to us but a huge difference to particle physicists! Over a period of three years, 15,000 neutrino beams were fired from CERN at special detectors located deep underground at Gran Sasso. The neutrinos, subatomic particles with very little mass, were contained within beams emitted from CERN 730 km (500 miles) away in Switzerland. An international team of scientists at the Gran Sasso research facility outside of Rome announced today that they have clocked neutrinos traveling faster than the speed of light.
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