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Author

A. Erickcek

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Preprint Sep 2026

Less isn't more: Cosmological bounds on the neutrino masses are robust to changes in the neutrino abundance

We investigate how neutrino-mass constraints from cosmology depend on the assumed thermal history of the universe. Photon injection after neutrino decoupling would decrease the neutrino abundance inferred from the temperature of the cosmic microwave background (CMB), potentially loosening the upper limit on their masse...

Sebastian J. Figueroa, Alexander C. Sobotka, A. Erickcek · 0 citations

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