The U-Cell Model Prediction Ωₘ=0. 3166, w=−1: Parameter-Free Consistency Test Against DESI DR1 BAO and Pantheon+ Supernovae

Key Points

• This work evaluates the U-Cell Model's predictions for cosmic parameters against observational data.
• Tested U-Cell Model prediction Omega_m=0.3166, w=−1 against DESI DR1 BAO and Pantheon+ supernovae.
• Analyzed 37 independent data points, including chi² statistics for model fitting.
• Applied Bayesian Information Criterion to compare model performances.
• UCM achieved chi²/dof=1.29, similar to Planck ΛCDM which was chi²/dof=1.30.
• Bayesian Information Criterion favored UCM with ΔBIC=+3.26, indicating a better fit with fewer parameters.
• CMB acoustic scale analysis showed a 1.8σ tension with the UCM model.