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Quick Question about anti-particles.

  1. Sep 9, 2008 #1
    Is it true that they have negative kinetic energy; wouldn't this mean that they have imaginary velocities!?! :confused:

    I'm sure I've read this somewhere but I just need to confirm if it's true or not.
  2. jcsd
  3. Sep 9, 2008 #2
    No, it's not true. They have positive energy and mass and real velocities.
  4. Sep 9, 2008 #3
  5. Sep 9, 2008 #4


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    They have opposite charge though
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