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What happens when a photon hits and antiparticle?

  1. Jun 18, 2010 #1
    This is probably a crazy question, but what happens to a photon when it hits an antiparticle? Say the same type of antiparticle that Hawking uses to derive his Hawking radiation. Does the photon disappear? Is its energy/frequency reduced?
  2. jcsd
  3. Jun 18, 2010 #2
    Exactly the same happens, as if a photon hit a "normal" particle. There is no fundamental distinction between normal and anti particles, the classification is arbitrary.

    Hawking did not postulate a specific kind of particles in his radiation. Any species will do.
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