Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Pair production inside the atom?

  1. Feb 6, 2015 #1
    Why there is no electron-positron production inside the, let say, Hydrogen atom?. I know that the electric field near nucleus get modified by some form factors making it not as big as the Coulomb field, but still i think is still very big.
     
  2. jcsd
  3. Feb 6, 2015 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    Where should the energy come from? Which process would not violate energy conservation?

    A theoretical nucleus with something like 150+ protons without any electrons might be able to make pair production because the electron ground state would be so deeply bound its binding energy would be sufficient to make a positron, but those nuclei don't exist. You can still get pair production if two lead nuclei pass very close to each other, mimicing such a heavy nucleus. This is studied at the LHC.
     
  4. Feb 6, 2015 #3
    My confusions is that above the Schwinger limit it is supposed to be pair productions. Due to the form of the coulomb field electric fields above the Schwinger limit can be found, why in this case that limit seems to not matter?.
     
  5. Feb 6, 2015 #4

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    Again, which process would you expect to see that does not violate energy conservation?
    If there is no such process, there is nothing that could happen.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Pair production inside the atom?
  1. Pair production (Replies: 2)

  2. Pair production (Replies: 11)

  3. Pair Production (Replies: 11)

  4. Pair production (Replies: 12)

Loading...