%0 Journal Article
%T Impact of the damping tail on neutrino mass constraints
%A Di Valentino, E.
%A Gariazzo, S.
%A Giare, W.
%A Mena, O.
%J Physical Review D
%D 2023
%V 108
%N 8
%I Amer Physical Soc
%@ 2470-0010
%G English
%F DiValentino_etal2023
%O WOS:001157784100002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5935), last updated on Sun, 18 Feb 2024 19:03:06 +0000
%X Model-independent mass limits assess the robustness of current cosmological measurements of the neutrino mass scale. Consistency between high-multipole and low-multiple cosmic microwave background observations measuring such scale further valuates the constraining power of present data. We derive here up-to-date limits on neutrino masses and abundances exploiting either the Data Release 4 of the Atacama Cosmology Telescope (ACT) or the South Pole Telescope polarization measurements from SPT-3G, envisaging different nonminimal background cosmologies and marginalizing over them. By combining these high-l observations with supernova Ia, baryon acoustic oscillations (BAO), redshift space distortions (RSD) and a prior on the reionization optical depth fromWMAP data, we find that the marginalized bounds are competitive with those from Planck analyses. We obtain Sigma m(nu) < 0.139 eV and N-eff = 2.82 +/- 0.25 in a dark energy quintessence scenario, both at 95% CL. These limits translate into Sigma m(nu) < 0.20 eV and N-eff = 2.79(-0.28)(+0.30) after marginalizing over a plethora of well-motivated fiducial models. Our findings reassess both the strength and the reliability of cosmological neutrino mass constraints.
%R 10.1103/PhysRevD.108.083509
%U https://arxiv.org/abs/2305.12989
%U https://doi.org/10.1103/PhysRevD.108.083509
%P 083509-11pp