Raymond T. Co
Physics and Astronomy · Indiana University
Publications
67
Citations
2,338
Est. group size
—
Recurring co-author estimate
Active years
15
Publishing since 2012
Raymond T. Co is a theoretical physicist working on the fundamental nature of the universe, especially dark matter (invisible matter that makes up most of the cosmos) and the origin of the matter-antimatter imbalance we observe. Much of the work focuses on hypothetical particles called axions and how they connect to cosmology, early-universe physics, and unexplained observations like the 'Hubble tension' (a disagreement in measurements of the universe's expansion rate).
Publication activity has been strong and fairly steady over the last five years (about 9 papers per year), following a notable peak in 2022.
Generated by claude-opus-4-8 from public bibliographic data · Jul 11, 2026
- Enhanced matter power spectrum from axion kination after Big Bang nucleosynthesis
Journal of Cosmology and Astroparticle Physics · 2026
- Dark Matter and Baryon Asymmetry from Monopole-Axion Interactions
arXiv (Cornell University) · 2025
- Acoustic misalignment mechanism for axion dark matter
Journal of High Energy Physics · 2025
- Lepto-axiogenesis with light right-handed neutrinos
Journal of High Energy Physics · 2025
- Enhanced Matter Power Spectrum from Axion Kination after Big Bang Nucleosynthesis
arXiv (Cornell University) · 2025
- Reviving sub-keV warm dark matter: a UVLF-based analysis
arXiv (Cornell University) · 2025
- Reviving sub-keV warm dark matter: a UVLF-based analysis
arXiv (Cornell University) · 2025
- Axion baryogenesis puts a new spin on the Hubble tension
Physical review. D/Physical review. D. · 2024
- A light QCD axion with hilltop misalignment
Journal of High Energy Physics · 2024
- Axion cogenesis without isocurvature perturbations
Physical review. D/Physical review. D. · 2024
- Gravity as a Portal to Reheating, Leptogenesis and Dark Matter
2024
- Lepto-axiogenesis with light right-handed neutrinos
arXiv (Cornell University) · 2024
- Axion baryogenesis puts a new spin on the Hubble tension
arXiv (Cornell University) · 2024
- A Light QCD Axion with Hilltop Misalignment
arXiv (Cornell University) · 2024
- Non-Gaussianity from explicit $U(1)$-breaking interactions
arXiv (Cornell University) · 2024
- arXiv (Cornell University)×21
- Journal of High Energy Physics×14
- Physical review. D/Physical review. D.×8
- Physical Review Letters×6
- Journal of Cosmology and Astroparticle Physics×5
This profile was generated automatically from public scholarly data (OpenAlex). Group size and activity levels are estimates derived from co-authorship patterns.
Last updated Jul 11, 2026.
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