comparison
plain-language theorem explainer
This definition tabulates the contrasting mechanisms for the strong CP problem: axion continuous relaxation versus Recognition Science discrete 8-tick J-cost selection, both yielding θ ≈ 0. A physicist comparing axion dark matter proposals to discrete quantization alternatives would cite the entry when surveying solutions to the θ_QCD fine-tuning. The entry is a direct list construction enumerating three paired descriptions.
Claim. The comparison between the axion solution and the Recognition Science 8-tick mechanism for the strong CP problem is the list of pairs: (Axion, Continuous relaxation, new particle), (RS, Discrete 8-tick, J-cost selection), (Both, Predict θ ≈ 0).
background
The module addresses the strong CP problem via the Lagrangian term θ (g²/32π²) G_μν G̃^μν with experimental bound |θ| < 10^{-10}. Recognition Science resolves it through 8-tick symmetry imposing discrete phase constraints of multiples of π/4, with J-cost minimization selecting θ = 0. Upstream results define cost as the J-cost of a recognition event from ObserverForcing and the derived cost from a multiplicative recognizer comparator; tick is the fundamental time quantum τ₀ = 1. The Axion structure records a light pseudoscalar with mass ~10^{-6} to 10^{-3} eV arising from the Peccei-Quinn mechanism.
proof idea
This is a definition that directly constructs the list of string pairs. No lemmas are applied; it is a straightforward enumeration of the contrasting mechanisms.
why it matters
This declaration supplies a concise contrast that downstream results such as mass ratio bounds and the W-mass anomaly explanation draw upon for anchoring. It fills the SM-008 target of explaining θ_QCD ≈ 0 from 8-tick symmetry as stated in the module documentation. It references the eight-tick octave (T7) and J-cost selection from the forcing chain (T5).
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