Data di Pubblicazione:
2016
Citazione:
Secret neutrino interactions: a pseudoscalar model / M. Archidiacono, S. Hannestad, R. Sloth Hansen, T. Tram. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 718:3(2016), pp. 032002.1-032002.6. (Intervento presentato al 14. convegno International Conference on Topics in Astroparticle and Underground Physics (TAUP) tenutosi a Torino nel 2015) [10.1088/1742-6596/718/3/032002].
Abstract:
Neutrino oscillation experiments point towards the existence of additional mostly sterile neutrino mass eigenstates in the eV mass range. At the same time, such sterile neutrinos are disfavoured by cosmology (Big Bang Nucleosynthesis, Cosmic Microwave Background and Large Scale Structure), unless they can be prevented from being thermalised in the early Universe. To this aim, we introduce a model of sterile neutrino secret interactions mediated by a new light pseudoscalar: The new interactions can accomodate sterile neutrinos in the early Universe, providing a good fit to all the up to date cosmological data.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Archidiacono, S. Hannestad, R. Sloth Hansen, T. Tram
Link alla scheda completa: