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The challenge of neutrino mass detection from cosmology

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Massive neutrinos modify the expansion history of the Universe and the formation of structures. Up-to-date cosmological data can provide very tight, yet model dependent, upper limits on the neutrino mass sum. In the next decade one of the goals of precision cosmology will be to pin down the absolute neutrino mass. In this talk I will discuss the physical effects induced by massive neutrinos on cosmological observables, reviewing current constraints and elaborating on their interpretation. I will then focus on the theoretical challenges of the analysis of data from upcoming galaxy surveys, showing how cosmology can detect a non-zero neutrino mass.

This talk is part of the Cosmology Lunch series.

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