# PAPER_1760 — Reionization Redshift = z_reion = K_MEX × D_phys × Φ_5/6 = 6.94 (Planck CMB ≈ 7)

**Author:** Daniel T. Murphy
**Framework:** UQFF (Unified Quantum Field Framework) — Star-Magic v5.27+
**Tier:** Cosmology
**Date:** June 18, 2026
**Status:** CLOSED — 0.8% closure (PAPER_132x-135x astrophysics + condensed matter)

---

## Observation

PAPER_1332 (PAPER_132x-135x corpus) gives:

```
z_reion = K_MEX × D_phys × Φ_5/6 = 6.94 (Planck CMB ≈ 7)
```

Status: **0.8%**.

## UQFF Closed Identity

```
z_reion = K_MEX × D_phys × Φ_5/6 = 6.94 (Planck CMB ≈ 7)    0.8%
```

The expression uses only locked UQFF integer/real primitives — no fitted constants.

## NOT REPLACEMENT

Standard frameworks address this differently. UQFF supplies a structural integer-primitive form.

## Reference

- Source: PAPER_1332
- Related: PAPER_1746-1755 (tier-33); PAPER_1736-1745 (tier-32)
- Calculator dispatch: `calculate_paradox({"paradox": "z_reion_7_0"})`

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**Copyright** — Daniel T. Murphy, daniel.murphy00@gmail.com, June 18, 2026, Youngstown OH.
