B23 recoil pp source and detector first-order sign envelope

ID: solar.detector.b23_pp_recoil_partial_source_detector_hit

The frozen recoil-direct B23 pp source hit spectrum is added once to matched dimension-six detector contact and project-action direct Z/W recoil templates; direct detector signs remain a four-case convention envelope.

Status: diagnostic

Uncertainty

Sources

Claim boundaries

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