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CM energy for different mass/energy beams

  1. Oct 24, 2009 #1
    Dear Particle Physicist,

    I'm unable to find an equation for the CM energy to use for when colliding beams have different masses and energies, for example the HERA colliding electron beams with proton beams. If you know a website, and can write the equation I'd be grateful. Thanks in advance
  2. jcsd
  3. Oct 24, 2009 #2

    Vanadium 50

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    Just use E2- p2 = m2.
  4. Oct 24, 2009 #3
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