Results Glossary Entry Canonical physics The τ-neutron is the minimal stable ontic defect bundle on the toroidal T² fiber: the lightest persistent T² defect with non-trivial winding data, unpolarized (zero charge, zero isospin, balanced χ_±), and the first ontic particle in the τ-…
Results · Physics Glossary · Particle PG-P01-neutron n Canonical Lean · formalized

τ-Neutron

The τ-neutron is the minimal stable ontic defect bundle on the toroidal T² fiber: the lightest persistent T² defect with non-trivial winding data, unpolarized (zero charge, zero isospin, balanced χ_±), and the first ontic particle in the τ-framework atlas.

Physics Glossary Primary: IV.P327 calibration anchor ontic defect fundamental particle e1 t2 fiber

τ-Definition

The τ-neutron is the minimal stable ontic defect bundle on the toroidal T² fiber: the lightest persistent T² defect with non-trivial winding data, unpolarized (zero charge, zero isospin, balanced χ_±), and the first ontic particle in the τ-framework atlas.

Categorical invariant. Minimal stable T²-defect bundle with non-trivial winding; unpolarized; first persistent ontic configuration in the τ-atlas.

Primary registry anchor: IV.P327

Supporting items: IV.P166, IV.P325, IV.R04, IV.P330, IV.P331

τ-Derivation Chain

  1. I.K0 — Universe Postulate establishes the categorical kernel τ
  2. IV.D11 — Physical quantity template grounds dimensional bookkeeping in τ-categorical invariants
  3. IV.D12 — Particle Kind defines a particle as a stable defect bundle on the T² fiber
  4. IV.P166 — Neutron Minimality: the neutron is the minimal stable unpolarized defect bundle on T²
  5. IV.P327 — The τ-neutron is the minimal ontic defect — the first persistent particle in the atlas
  6. IV.P330 — τ-neutron quark composition: n = udd, Q = 0
  7. IV.P331 — Neutron Superiority as Calibration Standard — directly measurable, structurally minimal

Lean modules referenced: TauLib.BookIV.Calibration.CalibrationAnchor

SI Translation

Numerical value: 1.67492749804e-27 ± 9.5e-37 kg

Calibration anchor: PG-P01-neutron

Calibration chain:

  1. m_n (empirical input)
  2. ι_τ ≈ 0.341304 (master constant)
  3. α_τ (fine-structure coupling)

Manuscript reference: manuscript-sources/book-05/part07-closure/ch-closure-constants.tex

Lean Coverage

Status: Formalized

Module: TauLib.BookIV.Calibration.CalibrationAnchor

Lean kind: structure

Lean symbol: CalibrationAnchor

Related glossary entries

Referenced by

Cross-domain bridges

This glossary term sits on the boundary between domains. The τ-framework's cross-domain pivots are the structural junctions where physics, life, and metaphysics readouts meet.

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