33.60 turns neutron near-field chiral scattering into a retainable cancellation-fingerprint court: with geometry, sign convention, b-weighting, spin state, and OAM mode control frozen, scanning the closest-approach distance b must reveal positive Δφ in an inner zone and negative Δφ in an outer zone with a stable zero crossing b0, pointwise sign reversal under +ℓ/−ℓ flips, K well below 1 and smaller than the proton’s K under the same aperture, while proton, ℓ = 0, weak-coupling, and permutation controls stay weaker; under V02/V08/V09-compatible retain, this remains only one neutron near-field OAM cancellation-texture ledger rather than a total neutron ontology verdict.
Use this section as a compact machine-readable EFT reference.
33.60 turns neutron near-field chiral scattering into a cancellation court. The admissible claim is not that the neutron has no chiral response, but that a fixed-aperture OAM probe reads a split response: positive phase in an inner zone, negative phase in an outer zone, and a stable zero crossing b0 between them.
Measurement uses one fixed sign convention and one preregistered b-weighting scheme. The hard ledger includes Δφ(b,ℓ) at each closest-approach setting, the zero crossing b0 and its stability, the opposite-sign indicator C for inner versus outer zones, the cancellation degree K from the weighted mean relative to the weighted mean absolute phase shift, and the reversibility indicator R obtained by summing the +ℓ and −ℓ results. The same aperture also yields the decisive proton comparison.
The geometry court must be frozen before the scan begins. A stable neutron target and phase-sensitive readout hold one sign definition end to end, +ℓ and −ℓ switching is rapid with online mode-purity monitoring, the b calibration method, b levels, and scan order are preregistered, b and handedness labels are blinded during extraction, and neutron spin-state control remains independent of b and ℓ schedules so that sign decisions cannot be contaminated by spin timing.
Controls must prove that the split sign is neutron-specific rather than geometric. Under the same apparatus and analysis aperture, the proton should fail to show a stable inner–outer sign split with persistent b0; the ℓ = 0 fundamental mode should strongly weaken or erase the split; weak coupling should drive the pattern toward noise; and permutation of b or handedness labels must collapse both b0 stability and the sign split if the result is genuine.
Support requires a stable zero crossing, opposite signs on either side of b0 at population level, pointwise sign reversal under handedness flips with R consistent with zero, and a cancellation degree K well below 1 and smaller than the proton’s K. Falsification follows from no spatial sign split, no stable b0, failed reversibility, or controls that reproduce the same pattern. The named adversaries are beam-center drift, OAM mode leakage, and spin-correlated sign errors.
So the chapter closes only one retained neutron near-field cancellation ledger aligned with the V02/V08/V09 interface lane. It may not be flattened into “neutral means no structure,” nor promoted into a total neutron ontology verdict. Its clean onward value is to hand a frozen OAM sign-split interface to 33.61, 33.62, 33.63, and 33.64.