TY  - JOUR
AU  - Esteban, I.
AU  - Mena, O.
AU  - Salvado, J.
PY  - 2022
DA  - 2022//
TI  - Nonstandard neutrino cosmology dilutes the lensing anomaly
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 083516
EP  - 9pp
VL  - 106
IS  - 8
PB  - Amer Physical Soc
AB  - Despite the impressive success of the standard cosmological model, several anomalies defy its triumph. Among them is the so-called lensing anomaly: The Planck satellite observes stronger cosmic microwave background (CMB) gravitational lensing than expected. The role of neutrinos in this anomaly has been mostly overlooked, despite their key role in CMB lensing, because in the standard scenario they tend to increase the tension. Here, we show that this strongly depends on the assumed neutrino equation of state. We demonstrate that if neutrinos have yet undiscovered long-range interactions, the lensing pattern is significantly affected, rendering the lensing anomaly as a statistical fluctuation. Our results, thus, open up a window to link anomalous CMB lensing with present and future cosmological, astrophysical, and laboratory measurements of neutrino properties.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2202.04656
UR  - https://doi.org/10.1103/PhysRevD.106.083516
DO  - 10.1103/PhysRevD.106.083516
LA  - English
N1  - WOS:000886611900003
ID  - Esteban_etal2022
ER  -