Well, I've been trying to figure out how to prove that when a positron and an electron annihilate and two photons are produced, the addition of their wavelengths equals(adsbygoogle = window.adsbygoogle || []).push({});

L1+L2=Lcompton(1-cos(theta)) where theta is the angle that separates both photons.

It's a relativity problem I guess. I keep trying E^2=Eo^2+c^2p^2 and other formulae but get no result.

Thanks for your help

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# Homework Help: Electron/Positron Annihilation

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