Evidence item · v0.74

Strong CP problem: tiny θ in QCD

E-STRONG-CP-THETA

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Classification

Evidence ID: E-STRONG-CP-THETA
Corpus/version: v0.74
Stage: stage2
Category: Fine-Tuning
Major category: Science
Sub-category: Constants / Parameters
BF status: ready
Scoring label: Scored row with active Bayes factors

Navigation

Primary Datum

Datum: the QCD theta parameter appears extremely small, creating the strong CP naturalness puzzle.

Scoring / Hypothesis Pressure

Hypothesis	log10BF	Min	Max	Rationale
`H-DEISM`	0.1	-0.04999999999999999	0.25	Strong CP problem: tiny θ in QCD nudges Deism upward because it fits an ordered cosmos without yet requiring a revealed or covenantal God. The effect is limited because the clue is broad and does not prove Deism by itself.
`H-GOD`	0.15	0	0.3	Strong CP problem: tiny θ in QCD nudges God upward because it fits a reality with deep order, intelligibility, or purpose. The effect is limited because rival explanations remain possible, and this row does not prove God by itself.
`H-GOD-OT`	0	-0.15	0.15	Strong CP problem: tiny θ in QCD does not clearly pick out the God-OT frame from broader theism. It stays neutral because the row lacks enough biblical or covenant detail to prove that view.
`H-IDEALISM`	0	-0.15	0.15	Strong CP problem: tiny θ in QCD does not clearly separate Idealism from other accounts of order and structure. It stays neutral because the clue can be read without settling what is most basic in reality.

Dependency / Cap Metadata

dependency_cluster_id: fine_tuning_physical_constants
dependency_cluster_role: support_layer
dependency_cluster: fine_tuning_physical_constants
dependency_role: support_layer
cap_profile: support_layer_small
evidence_function: context_child
directness: supporting

Counter-Pressure

title: Selection and deeper-law replies limit overclaim, but do not close the case.
text: Strong CP problem: tiny θ in QCD may reduce the force of a simple fine-tuning argument. That is fair. But it still leaves questions about law, measure, existence, intelligibility, and why anything life-permitting exists to be selected.
path: Say yes to the caution, then ask what the caution presupposes. If the answer is a multiverse, ask why that generator exists and why it is lawlike. If the answer is necessity, ask why necessity is life-friendly and rationally beautiful.

Apologetic Note

label: Apologetic leverage
title: The universe looks surprisingly fit for life and reason.
key point: Strong CP problem: tiny θ in QCD helps the Christian case because the world is not merely big; it is ordered, mathematical, stable, and life-permitting. The clue is not that science stops, but that science keeps finding a room where life and reason can exist.
conversation move: Use the room analogy: physics explains what happens inside the room; apologetics asks why there is a room with laws, dials, and minds able to measure them.
caveat: Do not oversell one science row. Multiverse, selection effects, and deeper-law replies matter. The Christian point is cumulative: order, life, reason, and meaning fit together.

Caveats / Notes

Cap notes: Capped support under E-FINETUNE-PHYSICAL-CONSTANTS-LAWS; not an independent fine-tuning hit.
Cap profile note: Child/support rows in broad science families are capped as support, not independent root proofs.
Governance note: Capped as support under E-FINETUNE-PHYSICAL-CONSTANTS-LAWS.

Citations

Peccei, R.D. & Quinn, H.R. (1977). CP Conservation in the Presence of Pseudoparticles.
Crewther, R. et al. (1979). Chiral estimate of the electric dipole moment of the neutron.

Recommended Citation

The Signal Evidence Dataset, "Strong CP problem: tiny θ in QCD," Evidence ID: E-STRONG-CP-THETA, Version 0.74. Accessed [access date]. https://logos-signal.org/evidence/E-STRONG-CP-THETA/

Machine-Readable Source

This page is generated from the public evidence mirror without recalculating or changing scores.