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I How to calculate the energy in gamma photons

  1. Oct 10, 2018 #1
    how do I calculate the energy of to photons moving in the opposite direction. starting from the same origin.
  2. jcsd
  3. Oct 10, 2018 #2


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    Staff: Mentor

    E = hγ ?
  4. Oct 11, 2018 #3
    I mean using just the mass invarians of relativity
  5. Oct 11, 2018 #4


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    Science Advisor

    If you have no data to use as input, a formula will not help. What do you know about these photons or about the process that produced them?
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