Dark matter-baryons elastic coupling

arXiv:2607.22415 · astro-ph.CO · Submitted 2026-07-24 · Read on arXiv

David Figueruelo, Florencia Anabella Teppa Pannia

astro-ph.CO

Submitted: 2026-07-24

Comments: 16 pages, 7 figures

Code: https://github.com/david-figuer/SymBoltz

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

Terminology

• Momentum transfer — 19× in this paper · explained in 2 episodes
• Clustering — 11× in this paper · explained in 2 episodes
• Degeneracy — 8× in this paper · explained in 3 episodes
• Matter Power Spectrum — 7× in this paper · explained in 2 episodes
• Tight-Coupling Approximation — 6× in this paper
• Consistency — 3× in this paper · explained in 3 episodes
• Abundance — 2× in this paper · explained in 1 episode
• Calibration — 2× in this paper · explained in 7 episodes
• Monte Carlo Analysis — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Anisotropy — 1× in this paper · explained in 3 episodes
• Boltzmann Equation — 1× in this paper · explained in 2 episodes
• Hubble Tension — 1× in this paper · explained in 9 episodes
• Robustness — 1× in this paper · explained in 5 episodes

Sources

• Planck 2018 results. VI. Cosmological parameters
• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• Baryon acoustic oscillations from the cross-correlation of Ly$\alpha$ absorption and quasars in eBOSS DR14
• Baryon acoustic oscillations at z = 2.34 from the correlations of Ly$\alpha$ absorption in eBOSS DR14
• Measuring the expansion history of the Universe with cosmic chronometers
• The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
• Union Through UNITY: Cosmology with 2,000 SNe Using a Unified Bayesian Framework
• The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset
• KiDS-1000 catalogue: Weak gravitational lensing shear measurements
• Dark Energy Survey Year 6 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Everything You Always Wanted To Know About The Cosmological Constant Problem (But Were Afraid To Ask)
• DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Status of the $S_8$ Tension: A 2026 Review of Probe Discrepancies
• Cosmic shear with small scales: DES-Y3, KiDS-1000 and HSC-DR1
• Further understanding the interaction between dark energy and dark matter: current status and future directions
• Scattering of Dark Matter and Dark Energy
• Models of coupled dark matter to dark energy
• Interacting quintessence from a variational approach Part II: derivative couplings
• Reconciling CMB and structure growth measurements with dark energy interactions

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