Let us have a particle which is moving with a constant velocity v in the laboratory...

Let us have a particle which is moving with a constant velocity v in the laboratory frame. Suppose this particle has a rest mass m and it decays into two photons.

We have to find an expression of the energy of the emitted photons as function of the angle between initial particle direction and the photons propagation direction

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genius_generous answered 1 year ago

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