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Creating an Electron

  1. Apr 12, 2010 #1

    jaketodd

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    Search for the text "APEX collaboration at Fermilab" on the following page:
    http://en.wikipedia.org/wiki/Antiproton

    It seems to indicate after that text that an antiproton can turn into an electron and gamma ray. However, before that it says "300,000 yr." So is it saying that it will take that long for that to happen? Is there a faster way to create a "new" electron?

    Hmm, it says "...antiproton-proton annihilation into electron-positron pair..." on the following page:
    http://thesis.library.caltech.edu/3577/

    Is that true; can you create a new electron from the annihilation of a proton?

    Thanks,

    Jake
     
    Last edited: Apr 12, 2010
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  3. Apr 12, 2010 #2

    ZapperZ

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    What's wrong with the standard old, true-and-tested pair production?

    Zz.
     
  4. Apr 12, 2010 #3

    jaketodd

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    Are you referring to proton-antiproton annihilation to produce a "new" electron?

    Thanks,

    Jake
     
  5. Apr 12, 2010 #4

    ZapperZ

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    Pair production - production of electron-positron pairs out of gamma rays.

    Zz.
     
  6. Apr 12, 2010 #5

    jtbell

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    In the context of the preceding paragraph, I'm pretty sure that this is a lower limit on the antiproton lifetime. That is, the experiment didn't actually see any antiprotons decay; but based on the number of antiprotons involved and the time duration of the experiment, if the antiproton has a lifetime greater than 300,000 yr they wouldn't have been able to detect any antiprotons decaying anyway.
     
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