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About Neutrinos

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  1. Sep 10, 2014 #1
    hello everyone
    I have a question , that is like a story " I talking with my friend about Neutrino and ...
    " I had written about it at wikipedia and they said that the speed of Neutrino not more than Photons , but I had read that they are faster than Photons speed.
    which one is true?????!!!!!!
    I am sorry about maybe i have a Grammatical mistake,because English is not my mother tongue.
    thanks so much
     
  2. jcsd
  3. Sep 10, 2014 #2

    Matterwave

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    Neutrinos are not faster than light. :)

    I think what you read about them being "faster than photons" was from a press report given out by CERN a couple of years back when they had an anomalous result in one of their detectors suggesting neutrinos traveled faster than light. As it turned out, it was just a fiber optic cable that was not plugged in properly if I remember correctly. In other words, it was just a mistake on CERN's part. There is no evidence that neutrinos travel faster than light.
     
  4. Sep 10, 2014 #3

    Drakkith

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    Neutrinos do not travel faster than photons. Recent experiments suggest that neutrinos have mass, so they must travel slower than light. But their mass is so very small and they interact so little with matter that it's very difficult to measure their speed. This difficulty has led to a few errors in measuring their speed that gave a result that was greater than the speed of light, but these errors were corrected and the measured speed was brought back down to the expected values.
     
  5. Sep 10, 2014 #4
    OK got it ;) thank you ;) Drakkith and Matterwave
    then there is nothing faster than light, but i have Hypothesis about this rule but i can not writte it , my English is not good excuse me.
     
  6. Sep 10, 2014 #5

    Matterwave

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    Indeed there is nothing as far as we know that goes faster than light.

    Be sure to check out the PF rules though, as personal theories are not allowed in this forum. Just a friendly reminder. ;)
     
  7. Sep 10, 2014 #6
    OK thanks
     
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