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ENERGY to matter

  1. Sep 16, 2004 #1
    E=mc2, so we can get energy from matter. However, is there any known way, theoreticall or otherwise, to convert energy into MATTER? Because so far I haven't heard of any.
     
  2. jcsd
  3. Sep 16, 2004 #2

    pervect

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    One of the main things physcisists do with high energy particle accelerators is to observe the processes via which energy (of motion) is converted into particles (matter). Most of the particles created this way are fairly exotic, but a few of them are the same as in normal matter.
     
  4. Sep 17, 2004 #3
    I'm not sure what this means.

    However if an atom absorbs a photon the rest mass will increase. Is that what you're looking for?

    Pete
     
  5. Sep 17, 2004 #4

    mathman

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    There is a well known process where energy is converted into matter, called pair production. It occurs when a high energy photon (gamma ray > 1.022 Mev) passes near a nucleus (needed for momentum conservation) and splits into an electron-positron pair. For much higher energies, other pairs are possible.
     
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