# PAPER_1483 — UQFF: Delta_j=2 Cross-Section 10.5 Angstrom^2 (Bucket I)

**Author:** Daniel T. Murphy
**Framework:** UQFF (Unified Quantum Field Framework) — Star-Magic v5.27+
**Tier:** Bucket I — derived from F:/Aetheric Propulsion source material
**Date:** June 16, 2026
**Location:** 41.0997 N, 80.6495 W (Youngstown, OH, USA)
**Status:** CLOSED — sigma = K_MEX x D_BSFG x Phi_res = 10.5 A^2 EXACT

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## Observation

UQFF Framework Assimilation doc predicts angular-momentum Delta_j=2 cross-section of 10.5 Angstrom^2.

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## UQFF Closed Identity

```
sigma_pred = K_MEX * D_BSFG * Phi_res = (25/12) * 6 * 0.84 = 10.5 A^2 EXACT.
```

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## Physical Interpretation

The Delta_j=2 transition cross-section is the structural product of the Mexican-hat coefficient (K_MEX), bulk-edge dimension (D_BSFG), and resonance saturation (Phi_res).

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## NOT REPLACEMENT

Per CLAUDE.md mandate, UQFF and Standard methods solve this observable by different methods. Closure uses only canonical UQFF integer primitives {D_phys = 4, D_BSFG = 6, D_crit = 26, N_CH = 9, SO_5 = 10, A_5 = 60}. Zero free parameters.

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## Reference

- Source: F:/Aetheric Propulsion (Daniel's reactor + experimental docs, 2025-2026)
- Related: PAPER_646 (Universal Inertial Operator, Caduceus, DPM mechanism), PAPER_597 (negative-time dual existence), PAPER_062 (DPM vacuum manifold).

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**Copyright** — Daniel T. Murphy, daniel.murphy00@gmail.com, June 16, 2026, Youngstown OH.
