If we scatter unpolarized electrons off each other and we calculate the amplitude for electrons to scatter into final states and one photon to be emitted do we get destructive interference because the photon can be emitted by either electron? Is one photon emission suppressed in favor of an even number of photons?(adsbygoogle = window.adsbygoogle || []).push({});

Can we say anything interesting about amplitudes representing Feynman diagrams with odd number of vertices?

Thanks for any help!

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# Feynman diagrams with odd number of vertices.

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