Cosmological Evidence for Dark Axion-Dark Baryon Interactions from Apparent Phantom Crossing

arXiv:2607.16191 · astro-ph.CO, gr-qc, hep-ph, hep-th · Submitted 2026-07-17 · Read on arXiv

Justin Khoury, Meng-Xiang Lin, Mark Trodden

astro-ph.CO, gr-qc, hep-ph, hep-th

Submitted: 2026-07-17

Comments: Add more references. 13 pages, 6 figures, 3 tables

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Hubble Tension — 11× in this paper · explained in 9 episodes
• Quintessence — 5× in this paper · explained in 2 episodes
• Clustering — 4× in this paper · explained in 2 episodes
• Adam — 3× in this paper · explained in 2 episodes
• Calibration — 3× in this paper · explained in 7 episodes
• Anisotropy — 2× in this paper · explained in 3 episodes
• Cosmic Microwave Background — 2× in this paper
• Matter Power Spectrum — 2× in this paper · explained in 2 episodes
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Canadian Institute for Theoretical Astrophysics — 1× in this paper
• Cosmic Linear Anisotropy Solving System — 1× in this paper
• Degeneracy — 1× in this paper · explained in 3 episodes
• Nonminimal coupling — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Apparent $w<-1$ and a Lower $S_8$ from Dark Axion and Dark Baryons Interactions
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• Planck 2018 results. VI. Cosmological parameters
• Early Dark Energy Can Resolve The Hubble Tension
• Acoustic Dark Energy: Potential Conversion of the Hubble Tension
• Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
• The Hubble Tension and Early Dark Energy
• The Ups and Downs of Early Dark Energy solutions to the Hubble tension: a review of models, hints and constraints circa 2023
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• Extended Dark Energy analysis using DESI DR2 BAO measurements
• Accelerating Universes with Scaling Dark Matter
• Exploring the Expansion History of the Universe
• The Dark Energy Survey Supernova Program: A Reanalysis Of Cosmology Results And Evidence For Evolving Dark Energy With An Updated Type Ia Supernova Calibration
• Union3.1: Reducing Systematics in Supernova Cosmology with Self-consistent Measurements of Host Galaxy Properties for 2000 Type Ia Supernovae
• Constraints on Dynamical Dark Energy from Multiple Probes in the Full Dark Energy Survey
• Crossing the Phantom Divide: Dark Energy Internal Degrees of Freedom
• Dark Energy Constraints from the Cosmic Age and Supernova
• Cosmological Evolution of a Quintom Model of Dark Energy
• Can the dark energy equation-of-state parameter w be less than -1?
• The phantom menaced: constraints on low-energy effective ghosts

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