We report a frozen numerical correspondence generated from the dimensionless helix parameter established in the preceding TEF preprint. That construction uses the measured Newton constant to calibrate a primitive radius, RG=hG/(8πc3)=ℓP/2, and then fixes the dimensionless shape by one-cycle phase closure, q1+q2=2/π, giving q=0.5563241800… without electroweak input. The present paper introduces the scale-free helical path excess δh=1+q2−1 and explores a conditional spinorial completion of a framed state by SU(2)≃S3. We explicitly separate this completion, the minimal Hopf-coordinate identification η=β with q=tanβ, and the choice of a unit round S3 with its unnormalized Riemann volume measure. Under these assumptions, the Hopf-band volume fraction is exactly sin2β, while the unit-sphere volume is 2π2. We then postulate, not derive, the electromagnetic correspondence αTEF=δh/(2π2), obtaining αTEF−1=136.7621663…, about 0.2002% from the 2022 CODATA recommended low-energy value. The factor 1/(2π2) is not claimed to follow physically from probability normalization: it depends on the metric scale and measure convention unless a future TEF action fixes them. The result is therefore presented as a frozen, gravity-anchored geometric correspondence with explicit theoretical failure conditions, rather than a derivation or precision prediction of QED. Its main purpose is to expose a concrete possible map G→RG→q→αTEF and, equivalently after calibration, a simple expression of the fine-structure candidate in terms of the inherited q.
Research Context
This preprint asks whether the dimensionless helical parameter developed in the preceding TEF spacetime construction can also support a conditional geometric correspondence with electromagnetic coupling.
The construction combines the scale-free excess of a helical path with a conditional SU(2)≃S3 completion. Under an explicit metric and measure convention, it yields αTEF−1=136.7621663…, approximately 0.2002% from the 2022 CODATA recommended low-energy value. The residual is retained rather than removed through fitting or a post-hoc scale choice.
The factor 1/(2π2) is postulated rather than derived and is not interpreted as a physical consequence of probability normalization. The result is presented as a frozen, gravity-anchored correspondence with explicit failure conditions, not as a derivation or precision prediction of quantum electrodynamics.
Publication Status
Version 4.7 is publicly archived on Zenodo as a preprint under the Creative Commons Attribution 4.0 International license. Its version-specific DOI is 10.5281/zenodo.22117153; the concept DOI for the complete version history is 10.5281/zenodo.22117152. The preprint has not undergone peer review.
Relationship to the Companion Manuscript
The paper inherits its helical parameter from A Helical Spacetime Ansatz Linking the Planck Scale and Electroweak Mixing. The two preprints should be read as linked constructions: the first develops the gravity-calibrated spacetime ansatz and weak-mixing candidate, while this paper tests a narrower, explicitly conditional fine-structure correspondence using the inherited geometry.
Citation
Zenodo citation
Wu, X. (2026). From a Gravity-Calibrated Helix to a Conditional Fine-Structure Correspondence (Version 4.7). Zenodo. https://doi.org/10.5281/zenodo.22117153
@misc{wu2026gravitycalibratedhelix,
author = {Wu, Xiaodan},
title = {From a Gravity-Calibrated Helix to a Conditional Fine-Structure Correspondence},
year = {2026},
publisher = {Zenodo},
version = {4.7},
doi = {10.5281/zenodo.22117153},
url = {https://doi.org/10.5281/zenodo.22117153}
}
Version History
v4.7 - August 26, 2026
Public preprint release on Zenodo. Version DOI: 10.5281/zenodo.22117153.
v3.3 - August 17, 2026
Previous public working manuscript.
Xiaodan Wu. “From a Gravity-Calibrated Helix to a Conditional Fine-Structure Correspondence.” TEF-2026-002, version v4.7, 2026-08-26. DOI: https://doi.org/10.5281/zenodo.22117153.
@unpublished{wu2026helical,
author = {Xiaodan Wu},
title = {From a Gravity-Calibrated Helix to a Conditional Fine-Structure Correspondence},
year = {2026},
note = {TEF-2026-002, version v4.7},
url = {https://theemergentframe.org/papers/helical-geometry-fine-structure-constant/},
doi = {10.5281/zenodo.22117153},
}