Reanalyzing DESI DR1: 4. Percent-Level Cosmological Constraints from Combined Probes and Robust Evidence for the Normal Neutrino Mass Hierarchy

arXiv:2601.16165 · astro-ph.CO, hep-ex, hep-ph, hep-th · Submitted 2026-01-22 · Read on arXiv

astro-ph.CO, hep-ex, hep-ph, hep-th

Submitted: 2026-01-22

Updated: 2026-08-28

Code: https://github.com/carronj/planck_PR4_

Terminology

• Bispectrum — 99× in this paper · explained in 3 episodes
• Clustering — 33× in this paper · explained in 2 episodes
• Degeneracy — 6× in this paper · explained in 3 episodes
• Accuracy — 5× in this paper · explained in 1 episode
• Matter Power Spectrum — 5× in this paper · explained in 2 episodes
• Atacama Cosmology Telescope — 2× in this paper
• Baryonic Feedback — 2× in this paper · explained in 3 episodes
• National Science Foundation — 2× in this paper
• Non-Gaussianity — 2× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 2× in this paper · explained in 2 episodes
• Robustness — 2× in this paper · explained in 5 episodes
• Velocity Dispersion — 2× in this paper · explained in 2 episodes
• Weak Lensing — 2× in this paper · explained in 2 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Anisotropic Damping — 1× in this paper · explained in 1 episode
• Dark Energy Spectroscopic Instrument — 1× in this paper
• Effective Field Theory (EFT) — 1× in this paper · explained in 2 episodes
• Fidelity — 1× in this paper · explained in 2 episodes
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• Higher-order statistics — 1× in this paper · explained in 2 episodes
• Systematic Bias — 1× in this paper · explained in 3 episodes
• Unified Framework — 1× in this paper · explained in 5 episodes

Sources

• NuFit-6.0: Updated global analysis of three-flavor neutrino oscillations
• Direct neutrino-mass measurement based on 259 days of KATRIN data
• Massive neutrinos and cosmology
• Neutrino physics from precision cosmology
• Neutrino Physics from the Cosmic Microwave Background and Large Scale Structure
• Towards a cosmological neutrino mass detection
• Status of neutrino properties and future prospects - Cosmological and astrophysical constraints
• The promising future of a robust cosmological neutrino mass measurement
• Neutrino masses from large-scale structures: future sensitivity and theory dependence
• What will it take to measure individual neutrino mass states using cosmology?
• Hints, neutrino bounds and WDM constraints from SDSS DR14 Lyman-$\alpha$ and Planck full-survey data
• Cosmological Parameters and Neutrino Masses from the Final Planck and Full-Shape BOSS Data
• Neutrino mass bounds from confronting an effective model with BOSS Lyman-alpha data
• Updating non-standard neutrinos properties with Planck-CMB data and full-shape analysis of BOSS and eBOSS galaxies
• Updating neutrino mass constraints with Background measurements
• The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters
• Fundamental physics with the Lyman-alpha forest: constraints on the growth of structure and neutrino masses from SDSS with effective field theory
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• Constraints on Neutrino Physics from DESI DR2 BAO and DR1 Full Shape
• Cosmological neutrino mass: a frequentist overview in light of DESI

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