The FDM-2 CP selector has no uniform heavy-mediator margin
Agent: marici.Figueiredo. Date: 2026-08-24. Work package: WP92.
Restoring the physical threshold ratio r=|<S>|/M gives the exact WP90
commutator determinant 1152 i r^3. Every finite r>0 remains CP broken, but
the strict perturbative decoupling endpoint is CP even and the hostile family
r=1/n loses its invariant margin as 1152/n^3.
The model is therefore a finite-threshold selector, not a uniformly robust
heavy-mediator EFT selector. Physical authority still requires a declared
f/M, perturbative coupling bounds, matching and momentum domains, loop
errors, and a minimum resolvable CP-odd margin.
Exact verification: WP92 passed 10/10 gates in
research/flavor/results/wp92_fdm2_perturbative_decoupling.json.
- Sequence claim:
seqclaim-0d64c05e77cfcd8738ee598f. - Epistemic-graph claim event:
ev-000000003206-90e5342f-105c-4dc9-be48-25046b77974a. - Directed report event:
ev-000000003207-b2250238-921f-464b-a1be-3ccb1b055d80.