List of Feynman diagrams

List with diagrams of common Feynman diagrams

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This is a list of common Feynman diagrams. His first published diagram appeared in Physical Review in 1949.[1]

Name or phenomenon  | Description  | Diagram

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Beta decay | beta particle is emitted from an atomic nucleus  |
Compton scattering | scattering of a photon by a charged particle  |
Neutrino-less double beta decay | If neutrinos are Majorana fermions (that is, their own antiparticle), Neutrino-less double beta decay is possible. Several experiments are searching for this.  |
Pair production and annihilation | In the Stückelberg–Feynman interpretation, pair annihilation is the same process as pair production |
Møller scattering | electron-electron scattering  |
Bhabha scattering | electron-positron scattering  |
Penguin diagram | a quark changes flavor via a W or Z loop  |
Tadpole diagram | One loop diagram with one external leg  |
Self-interaction or oyster diagram  | An electron emits and reabsorbs a photon  |
Box diagram  | The box diagram for kaon oscillations |
Photon-photon scattering |
Higgs boson production | Via gluons and top quarks |
Via quarks and W or Z bosons |
Quad cancellations | One of the many cancellations to the quadratic divergence to squared mass of the Higgs boson which occurs in the MSSM.  |
Primakoff effect | production of neutral pseudoscalar mesons by photons interacting with an atomic nucleus |
Delbrück scattering | deflection of high-energy photons in the Coulomb field of nuclei  |
Deep inelastic scattering | a lepton is deflected by a virtual photon emitted by a quark from the hadron  |
Chiral anomaly | Anomaly-induced neutral pion decay  π 0 → γ γ   . {\displaystyle \pi ^{0}\to \gamma \gamma ~.} |
Flavor-changing neutral current (FCNC)  | Hypothetical interactions that change the flavor of a fermion without altering its electric charge, that could happen in the standard model or beyond.  |

## References

[edit]

1. ^ Wilczek, Frank (July 5, 2016). "How Feynman Diagrams Almost Saved Space". Quanta magazine. Retrieved January 1, 2025.