Conveners
Wednesday Morning Session 1: Wednesday Morning Session 1
- Pedro Machado (Fermilab)
Cosmological measurement of the absolute mass scale of neutrinos is a long-anticipated product of ongoing and upcoming cosmological surveys. The recent release of baryon acoustic oscillation (BAO) data from DESI, when combined with observations of the cosmic microwave background (CMB), has pushed our precision toward the level necessary to detect the cosmological impact of neutrino mass. ...
In this talk, I will discuss a novel way of modeling neutrino self-interactions for cosmological observables. The mechanism relies on the fact that neutrinos and dark radiation, having the same abundance and free-streaming properties, are indistinguishable in low-energy cosmological probes. The minimal proof-of-principle model naturally accommodates relaxed neutrino mass constraint and mimics...
