2015 Nobel Prize for Physics was awarded for the discovery of (neutrino oscillations) through which it is proved that neutrinos have mass.
The report does not claim the prize holders deserved or not that research was flawed, the physicist argues that the way the commission interpreted discovery is wrong. The award was given for research into neutrinos, particles (phantom) which appear from nuclear interaction as well as the center of the sun.
 |
| Japanese Physicist Wins 2015 Nobel Prize For Neutrino Research |
They are described as (ghost particles) because rarely interact with matter. The only way that scientists can detect the presence of neutrinos is through their interaction with subatomic weak forces and gravity, using Super-Kamiokande detector and the detector particles from Japan or Neutrino Sudbury Observatory (SNO) in Canada.
 |
| SNO detector installed underground, before cabling the photomultiplier tubes. (Courtesy of SNO) photo: wikipedia |
Experts have discovered that there are three types of neutrinos - electronic, muon and taonic. A neutrino can become electronic or taonic, this process is called oscillation. Super-K detector that can detect muon neutrinos generated only by cosmic rays hitting the Earth's atmosphere, it revealed that the Earth is hit much more atmospheric neutrinos at the surface than in its interior. This phenomenon suggests that neutrinos oscillated while penetrated the atmosphere Super-K detector because he could not detect.
SNO detector team used in 2001 and 2002 for observation of the Sun neutrinos. One of their techniques can only detect electrons, neutrino and another method to detect all three types. The results showed that when the neutrino electron reached Earth, only 34% of them remained electrons neutrino, which means that over time changed their shape.
Nobel Committee for Physics interpreted these results as evidence that neutrinos can oscillate while traveling and finally they have mass.
Alexei Smirnov physicist from Max Planck Institute for Nuclear Physics in Germany stated in his work that the committee members have used the wrong word (oscillation).
He believes the Japanese team successfully proved oscillation action, but the team that used the SNO detector proved what was happening to the neutrinos from the Sun, more subtle change.
 |
| Physicist Awarded Einstein Medal ICTP |
 |
| photo: taringa.net |
Smirnov believes that neutrinos from the Sun change its type, but not through oscillations as Nobel committee members have understood.
Other articles on the same theme:
No comments:
Post a Comment