Electron derivative-current photon-contact Ward check

ID: solar.detector.electron_derivative_photon_contact_ward

The project's gauge-covariant EOM-reduced neutral electron current satisfies a photon Ward identity only when the derivative photon contact accompanies both external-electron emission legs.

Status: diagnostic

Uncertainty

• This diagnostic badge is a theory locator; its claim still needs independent, claim-specific validation.

Sources

• https://arxiv.org/html/2005.08013v2

Claim boundaries

• This badge locates a theory claim; it does not validate a physical effect or engineering application.

Diagnostic context only. Cite independent evidence for claims about the world.