Double pair annihilation
$e^+e^-e^+e^- \to \gamma\gamma$
Two electron-positron pairs annihilate into two photons. Time-reversed double pair production.
No diagrams cataloged for this process yet.
$e^+e^-e^+e^- \to \gamma\gamma$
Two electron-positron pairs annihilate into two photons. Time-reversed double pair production.
No diagrams cataloged for this process yet.