Document Type
Article
Publication Date
2-25-2020
Publication Title
PHYSICAL REVIEW LETTERS
Volume
124
Issue
8
Publisher Name
American Physical Society
Abstract
keV-scale gauge-singlet fermions, when allowed to mix with the active neutrinos, are elegant dark matter (DM) candidates. They are produced in the early Universe via the Dodelson-Widrow mechanism and can be detected as they decay very slowly, emitting x-rays. In the absence of new physics, this hypothesis is virtually ruled out by astrophysical observations. Here, we show that new interactions among the active neutrinos allow these sterile neutrinos to make up all the DM while safely evading all current experimental bounds. The existence of these new neutrino interactions may manifest itself in next-generation experiments, including DUNE.
Recommended Citation
de Gouvêa, André; Sen, Manibrata; Tangarife, Walter; and Zhang, Yue, "Dodelson-Widrow Mechanism in the Presence of Self-Interacting Neutrinos" (2020). Physics: Faculty Publications and Other Works. 57.
https://ecommons.luc.edu/physics_facpubs/57
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.
Copyright Statement
© The Authors, 2020.
Comments
Author Posting © The Authors, 2020. This article is posted here by permission of The Authors for personal use, not for redistribution. The article was published in JOURNAL, Volume 124, Issue 8, February 2020, https://doi.org/10.1103/PhysRevLett.124.081802