Mass-varying neutrino in light of cosmic microwave background and weak lensing

Understand

We aim to constrain mass-varying neutrino models using large scale structure observations and produce forecast for the Euclid survey.

• We investigate two models with different scalar field potential and both positive and negative coupling parameters \beta.
• These parameters correspond to growing or decreasing neutrino mass, respectively.
• We explore couplings up to |\beta|<5.