Why is the rest mass of photons 0?
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Nov7-08, 03:12 PM
I'd like to hear from anyone who has an idea of how this conclusion is come about.
I'm not sure what to tell you other than you solve the relevant equations. A massive photon replaces the Maxwell Lagrangian with the Proca Lagrangian, and when you solve, you find that you have a force that falls off faster than inverse square.