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... > high-energy astrophysics > particle astrophysics > elementary particle > particle interaction > photon electron interaction > vertex function

Terme préférentiel

vertex function  

Définition

  • In quantum electrodynamics, the vertex function describes the coupling between a photon and an electron beyond the leading order of perturbation theory. In particular, it is the one particle irreducible correlation function involving the fermion ψ, the antifermion ψ¯, and the vector potential A. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Vertex_function)

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URI

http://data.loterre.fr/ark:/67375/MDL-VTC5SD2T-T

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