Neutrino Mass from Cosmology: Probing Physics Beyond the Standard Model

TL;DR

Cosmological observations are rapidly advancing, providing increasingly precise constraints on neutrino masses that surpass laboratory experiments, thus offering a promising avenue to uncover physics beyond the Standard Model.

Contribution

This paper reviews recent progress in cosmological measurements of neutrino masses and discusses their implications for physics beyond the Standard Model.

Findings

Cosmology now provides the tightest constraints on neutrino masses.

Future observations are expected to definitively measure the absolute neutrino mass scale.

Massive neutrinos significantly influence matter clustering in the universe.

Abstract

Recent advances in cosmic observations have brought us to the verge of discovery of the absolute scale of neutrino masses. Nonzero neutrino masses are known evidence of new physics beyond the Standard Model. Our understanding of the clustering of matter in the presence of massive neutrinos has significantly improved over the past decade, yielding cosmological constraints that are tighter than any laboratory experiment, and which will improve significantly over the next decade, resulting in a guaranteed detection of the absolute neutrino mass scale.