The U-Cell Model vs DESI DR2 Baryon Acoustic Oscillations: Cross-Check with 14 Million Galaxies and the DESI-Planck Parameter Tension

Norbert Prebeck

doi:10.5281/zenodo.19412691

April 4, 2026Open Access

The U-Cell Model vs DESI DR2 Baryon Acoustic Oscillations: Cross-Check with 14 Million Galaxies and the DESI-Planck Parameter Tension

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Key Points

The central aim is to compare the UCM cosmological model with DESI DR2 baryon acoustic oscillations to assess parameter consistency.
Tested UCM against DESI DR2 BAO using 13 data points.
Conducted analysis across redshift range z=0.30-2.33.
Calculated chi-squared and Bayesian Information Criterion (BIC) to evaluate model fit.
UCM model shows 2.2 sigma deviation from DESI best-fit parameter Omega_m.
Identified tension in parameters similar to that of Planck ΛCDM model.
BIC suggests UCM slightly favors the data compared to DESI DR2.

Implication

Cross-checking UCM and DESI DR2 BAO results reveals significant cosmological parameter tension.

Abstract

Tests UCM (Omega_m=0.3166, w=-1) against DESI DR2 BAO (Abdul-Karimet al. 2025), 13 data points, z=0.30-2.33. chi²/dof=24.0/13=1.85,ΔBIC=+2.56. The UCM is 2.2sigma from the DR2 best-fit Omega_m=0.2975,identical to Planck ΛCDM (2.1sigma). The DESI-Planck tension affectsboth models equally.

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Cite This Study

Norbert Prebeck (2026) studied this question.

synapsesocial.com/papers/69d34e739c07852e0af97fcb https://doi.org/10.5281/zenodo.19412691

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The U-Cell Model vs DESI DR2 Baryon Acoustic Oscillations: Cross-Check with 14 Million Galaxies and the DESI-Planck Parameter Tension

Key Points

Implication

Abstract

Discussion

Cite This Study

The U-Cell Model vs DESI DR2 Baryon Acoustic Oscillations: Cross-Check with 14 Million Galaxies and the DESI-Planck Parameter Tension

Key Points

Implication

Abstract

Discussion

Cite This Study

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