In this velocity neutrinos do not believe, so check

October 31, 2011 15:29

Physicists began to repeat experiments to exceed the speed of light

In late September, physicists gave the world sensation: they recorded the excess of the speed of light. For incredible results have led experiments carried out in CERN (European Organization for Nuclear Research) (see "KP" for 23/09/2011). Until superluminal overclocked neutrinos — subatomic elementary particles with mass. Neutrinos were produced from the lab in Switzerland and is caught in Italy — a few hundred kilometers — sensor detector OPERA (Oscillation Project with Emulsion-tRacking Apparatus). Its equipment weighing 1300 tons is located at a depth of nearly a mile.

All of modern physics as if immediately disintegrated along with the theory of relativity. Jeopardized the main physical taboo — the speed of light. After all, as it is believed no material body can not exceed it. But researchers in the laboratory of CERN (European Organization for Nuclear Research in Geneva, Switzerland), say that fixed excess. And more than once.

Told Eriditato Antonio (Antonio Ereditato) of the University of Bern (University of Bern) — Speaker, representing the collective detector has 160 scientists, anomalies continue for three years. And may not be a coincidence. FTL flew about 16,000 neutrinos. If the particles moving at the speed of light, they would overcome a distance of 732 km from CERN to OPERA of 2.43 milliseconds. A stay on the particle detector 60 nanoseconds faster.

— We have repeatedly checked the data, — says the scientist — but have not found anything that could distort the measurement.

But soon other physicists doubted the outcome of his colleagues. There were a lot of skeptics (see manual "here.) At the Institute for Nuclear Research special report even came from CERN one of the authors of the sensational discovery — Head of the Joint Institute for Nuclear Research (JINR), Leader "Study of neutrino oscillations," which includes other international projects related to research neutrino candidate Physical and Mathematical Sciences Yuri Gornushkin. He is from the Russian side took part in the experiment OPERA (Oscillation Project with Emulsion-tRacking Apparatus), the results of which allowed to speak about the incredible event in physics: overcoming the speed of light.

— We can not explain the effect of some systematic errors that are known to us, — explained Yuri Gornushkin. — It is possible that they are. Nevertheless, after much deliberation, we decided on one's own account to publish their results, because they do not want to detract from their own merits, if the opening is. Indeed, in the stories often have been cases where scientists have observed something unusual, do not dare to say so, and are forgotten. But we do not want to be so arrogant, because we do not have confidence. Therefore call on colleagues to help double-check our results, because they themselves do not see where mistaken. We hope that in the end will be able to prove once again that the speed of light is still exceeded.

And colleagues undertook the test. Experiment to send beams of neutrinos from Switzerland to Italy now repeated with different initial conditions, reports

— A few days ago, physicists have started to send out the CERN to Gran Sasso neutrino beams new — leads BBC News words CERN Research Director Sergio Bertolucci (Sergio Bertolucci).

Specialists note: they can not measure the travel time between the two science facilities each particle individually. Their numbers physics obtained after statistical processing a huge number of events — to send the pulse and its detection.

To improve accuracy, the new series of experiments, which will last until mid-November, the scientists use a much shorter neutrino pulses — duration of 1-2 nanoseconds with a pause of 500 nanoseconds between them. Before each pulse lasting 10 microseconds, and the devices distinguish its beginning and end.

Meanwhile, according to the results of previous research cycle, starting in September, has already produced more than 80 scientific works: some scientists suggest articles explain the effect, while in others — report problems entailed by such excess.

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