TL;DR
This review discusses how cosmological observations constrain neutrino properties, including mass, mixing, and potential new physics, highlighting recent bounds and observational prospects.
Contribution
It provides a comprehensive overview of current cosmological constraints on neutrino properties and explores methods to relax these bounds and observe the cosmic neutrino background.
Findings
Upper bounds on neutrino mass from cosmology
Constraints on neutrino mixing parameters and sterile neutrinos
Implications of neutrino oscillations on cosmological bounds
Abstract
This is a brief review for particle physicists on cosmological impact of neutrinos and on restrictions on neutrino properties from cosmology. The paper includes discussion of upper bounds on neutrino mass and possible ways to relax them, methods to observe the cosmic neutrino background, bounds on the cosmological lepton asymmetry which are strongly improved by neutrino oscillations, cosmological effects of breaking of spin-statistics theorem for neutrinos, bounds on mixing parameters of active and possible sterile neutrinos with the account of active neutrino oscillations, bounds on right-handed currents and neutrino magnetic moments, and some more.
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