Electron Positron pair

  • Thread starter arpon
  • Start date
  • #1
236
16

Homework Statement


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. Homework Equations

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

The Attempt at a Solution


Actually I thought, it would be just [itex]E = mc^2[/itex]. But the answer doesn't match.
 

Answers and Replies

  • #2
2,793
594
You should calculate the energy required to produce a pair of particles i.e. two particles with equal masses!
 
  • #3
236
16
[itex]2*mc^2[/itex] ?
 
  • #4
2,793
594
Yeah!
 

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