Neutrino matter with PLANCK
Stephane Plaszczynski
TL;DR
This paper reviews how cosmological data, especially from PLANCK, constrains neutrino masses, highlighting recent improvements and challenges in modeling and systematics control.
Contribution
It provides an overview of current neutrino mass limits from cosmology and discusses expected advancements with PLANCK data, focusing on CMB-lensing effects.
Findings
Current upper limits on neutrino masses from cosmology
Expected improvements with PLANCK data
Importance of controlling systematic effects
Abstract
After reviewing the main mechanisms by which cosmological measurements constrain the sum of neutrino masses, I give the current reached upper limits, emphasizing the level of model-dependence. A large improvement is to be expected with PLANCK's satellite data, on which I give some news, in particular due to the characterization of the CMB-lensing effect. It will however require a thorough control of many systematics effects upon which progress has been made recently.
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Taxonomy
TopicsCosmology and Gravitation Theories · Neutrino Physics Research · Astrophysics and Cosmic Phenomena