0.5 eV QCD Axion Cosmology

Name: 0.5 eV QCD Axion Cosmology
Uploaded: 2026-10-08T14:22:32.679606+00:00
Duration: 499 s
Description: This cosmology proposes dark matter is cooling QCD axions with a 0.5 eV mass to solve the Hubble tension between early and late universe observations. It achieves this by doubling baryon abundance and adjusting spectral index, leading to high-precision predictions that match standard $\Lambda$CDM results while resolving observational discrepancies.

This cosmology proposes dark matter is cooling QCD axions with a 0.5 eV mass to solve the Hubble tension between early and late universe observations. It achieves this by doubling baryon abundance and adjusting spectral index, leading to high-precision predictions that match standard $\Lambda$CDM results while resolving observational discrepancies.

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