eV-scale Sterile Neutrinos

Carlo Giunti (1) , T. Lasserre (2)

1 INFN - Istituto Nazionale di Fisica Nucleare
2 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

We address the phenomenology of light sterile neutrinos, with an emphasis on short-baseline neutrino oscillations. After reviewing the observed short-baseline neutrino oscillation anomalies, we discuss the global fit of the data and the current appearance–disappearance tension. We also review briefly the effects of light sterile neutrinos in β decay, neutrinoless double-β decay, and cosmology. Finally, we discuss future perspectives of the search for the effects of eV-scale sterile neutrinos.

Mots clés: neutrino; sterile; oscillations; mass; mixing; reactor; anomaly; neutrino: sterile; neutrino: oscillation; neutrino: mass; neutrino: mixing; neutrino: nuclear reactor; cosmological model; double-beta decay: (0neutrino); semileptonic decay

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Carlo Giunti, T. Lasserre. eV-scale Sterile Neutrinos. Annual review of nuclear and particle science, 2019, 69, pp.163-190. ⟨10.1146/annurev-nucl-101918-023755⟩. ⟨hal-02008888⟩