TY  - JOUR
AU  - Di Valentino, E.
AU  - Gariazzo, S.
AU  - Giare, W.
AU  - Mena, O.
PY  - 2023
DA  - 2023//
TI  - Impact of the damping tail on neutrino mass constraints
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 083509
EP  - 11pp
VL  - 108
IS  - 8
PB  - Amer Physical Soc
AB  - 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.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2305.12989
UR  - https://doi.org/10.1103/PhysRevD.108.083509
DO  - 10.1103/PhysRevD.108.083509
LA  - English
N1  - WOS:001157784100002
ID  - DiValentino_etal2023
ER  -