2born (2born) wrote,
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2born

Нейтрино в астрофизике и космологии: лекции TASI

Neutrinos in Astrophysics and Cosmology: Theoretical Advanced Study Institute (TASI) 2020 Lectures^ https://arxiv.org/abs/2102.10183
Kevork N. Abazajian
I introduce the consequences of neutrino mass and mixing in the dense environments of the early Universe and in astrophysical environments. Thermal and matter effects are reviewed in the context of a two-neutrino formalism, with methods of extension to multiple neutrinos. The observed large neutrino mixing angles place the strongest constraint on cosmological lepton (or neutrino) asymmetries, while new sterile neutrinos provide a wealth of possible new physics, including lepton asymmetry generation as well as candidates for dark matter. I also review cosmic microwave background and large-scale structure constraints on neutrino mass and energy density. Lastly, I review how X-ray astronomy has become a branch of neutrino physics in searches for keV-scale sterile neutrino dark matter radiative decay.
Comments: Theoretical Advanced Study Institute (TASI) 2020 Lectures Chapter; 45 pages, 17 figures
Tags: Мегаучебник или Что я читал и похвалил, разгребая arXiv'ы
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