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Matter/Antimatter annhialation

  1. Jan 4, 2010 #1
    i have a question, if i took matter and antimatter of differing quantities, so for example, i took a carbon atom made up of matter and a boron atom made of antimatter, when they annhialate, would i be left with a hydrogen atom made of matter plus energy?
  2. jcsd
  3. Jan 5, 2010 #2


    Staff: Mentor

    With that much energy released you probably would not wind with an atom at all, but yes, in the end there would be some matter left over and a lot of energy, assuming complete annihilation of the antimatter.
  4. Jan 5, 2010 #3
    The only stable hadron (in isolation) is a proton. Hadron number is conserved (as far as we know). With carbon-12 and anti-boron-11, assuming complete annihilation, you will have one proton and one electron left, after the dust settles. With carbon-12 and anti-boron-10, two protons and two electrons, with a very small probability of one deuteron.
    Bob S
  5. Jan 5, 2010 #4

    Vanadium 50

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    No it's not. [itex]\rho \rightarrow \pi \pi[/itex]. One goes in, two go out.
  6. Jan 5, 2010 #5
    just out of interest if matter can be converted to energy can energy be converted to matter. I was asked this and i think the answer is yes but i cant think of a situation where it would happen
  7. Jan 5, 2010 #6
    will the remaining matter absorb the energy?
  8. Jan 5, 2010 #7
    Sorry- I meant baryon number is conserved. The only stable hadron (in isolation) is a proton.
    bob s
  9. Jan 5, 2010 #8
    Fermilab is creating protons and antiprotons at the rate of ~3 x 1011 from energy per hour. See left panel in
    Right now, Fermilab is creating about 28 milliamps (circulating current) of antiprotons per hour.
    Bob S
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