Current Evidence Status

Updated from the current source and retained reports on 2026-07-24.

Physical path	Evidence class	Quantitative result	Scope boundary	Retained report
Cu electron-impact K vacancy	same-observable experiment	17/17 points within 1.78 combined standard uncertainties	Cu K shell, 9.63-89.9 keV; not general electron material transport	CU_ELECTRON_K_SHELL_IONIZATION.md
Fe photoelectric K fluorescence	same-observable experiment	Kalpha/Kbeta 3.11%/3.08% low; line ratio differs 0.033%	elemental Fe at 59.54 keV; not arbitrary shells/materials	FE_K_SHELL_XRF.md
O-16 photoneutron production	same-observable experiment	largest normalized residual 1.155; RMS 0.573	microscopic 15.97-20.14 MeV response and represented MT5/50/600 competition	O16_PHOTONEUTRON_PRODUCTION.md
Al positron backscatter	same-observable experiment	0.1282 +/- 0.00473 vs approximately 0.136	35 keV, thick elemental Al, returned current above 50 eV	POSITRON_ALUMINUM_BACKSCATTER.md
light-water angular response	same-observable experiment	median C/E 0.9831; geometric RMS factor 1.1093	microscopic 2H+O response, 0.0063-2.2 eV, 293.6 K; not repeated thermalization	LIGHT_WATER_THERMAL_ANGULAR_SCATTERING.md
TIARA Fe-10 transmission	same-observable experiment plus OpenMC diagnostic	C/E 0.978 at 20-38 MeV; 0.957 at 38-44 MeV; 1.024 at 5-44 MeV	bounded 43 MeV source/10 cm iron case; 5-20 MeV model discrepancy retained	TIARA_FE43_HIGH_ENERGY_NEUTRON_TRANSMISSION.md
Al-27 proton nonelastic rate	experiment for total rate; runtime diagnostic for final state	evaluated/experiment 0.9794; analog collisions within 0.57 binomial standard deviations	supports MT5 magnitude and LCT=3 runtime path, not all p+Al final states	PROTON_ALUMINUM_TOTAL_REACTION.md

Important Distinctions

• physics-closed means the retained report completes one bounded same-observable capability, not an entire package.
• core-capability or shared-capability evidence can prove a real runtime mechanism without proving agreement with nature.
• OpenMC and Geant4 comparisons are inter-code diagnostics unless a separate experiment closes the same observable.
• NIST STAR tables support stopping and range quantities, not nuclear reaction transport or a complete application.

In-Progress Work

Current source development includes additional alpha elastic/stopping responsibility and differential-response work. Until that code and its report form one reproducible revision, it should be read as development status rather than a published user capability.