Cosmological evolution with decaying dark matter: an integral-equation approach

arXiv:2607.24910 · astro-ph.CO · Submitted 2026-07-27 · Read on arXiv

Nanoom Lee, Anna Bencke, Marc Kamionkowski, José Luis Bernal

astro-ph.CO

Submitted: 2026-07-27

Comments: 12 pages, 6 figures. Comments are welcome

Code: https://github.com/nanoomlee/CLASSIER

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

Terminology

• Accuracy — 11× in this paper · explained in 1 episode
• Matter Power Spectrum — 11× in this paper · explained in 2 episodes
• Weak Lensing — 4× in this paper · explained in 2 episodes
• Clustering — 3× in this paper · explained in 2 episodes
• Anisotropy — 2× in this paper · explained in 3 episodes
• Boltzmann Equation — 1× in this paper · explained in 2 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Core — 1× in this paper · explained in 2 episodes
• Cosmic Linear Anisotropy Solving System — 1× in this paper
• Observatory Legacy Survey of Space and Time — 1× in this paper

Sources

• CMB-S4 Science Book, First Edition
• CMB-S4 Science Case, Reference Design, and Project Plan
• Snowmass 2021 CMB-S4 White Paper
• The Simons Observatory: Science goals and forecasts
• The Simons Observatory: Astro2020 Decadal Project Whitepaper
• CMB-HD: An Ultra-Deep, High-Resolution Millimeter-Wave Survey Over Half the Sky
• Snowmass2021 CMB-HD White Paper
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• The Dark Energy Spectroscopic Instrument (DESI)
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• Large Synoptic Survey Telescope: Dark Energy Science Collaboration
• The LSST Dark Energy Science Collaboration (DESC) Science Requirements Document
• Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report
• Euclid Definition Study Report
• Evolution of perturbations and cosmological constraints in decaying dark matter models with arbitrary decay mass products
• Cosmological Simulations of Decaying Dark Matter: Implications for Small-scale Structure of Dark Matter Halos
• Implications of the $S_8$ tension for decaying dark matter with warm decay products
• Linear cosmological constraints on 2-body decaying dark matter scenarios and the $S_8$ tension
• A frequentist view on the two-body decaying dark matter model
• Decaying Dark Matter as a Possible Solution for Cosmological Tensions

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