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Electron Positron pair

  1. Jan 4, 2015 #1
    1. The problem statement, all variables and given/known data
    The antiparticle of electron is positron, whose mass is the same as electrons, i.e. [itex] 9.1 * 10^{-31} kg [/itex] but the charge is opposite. What is the minimum energy required to produce a electron-positron pair?

    2. Relevant equations

    [itex]E = mc^2[/itex]

    3. The attempt at a solution
    Actually I thought, it would be just [itex]E = mc^2[/itex]. But the answer doesn't match.
     
  2. jcsd
  3. Jan 4, 2015 #2

    ShayanJ

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    Gold Member

    You should calculate the energy required to produce a pair of particles i.e. two particles with equal masses!
     
  4. Jan 4, 2015 #3
    [itex]2*mc^2[/itex] ?
     
  5. Jan 4, 2015 #4

    ShayanJ

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    Gold Member

    Yeah!
     
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