Sterile neutrino dark matter production

Sterile neutrino dark matter production

Sterile neutrinos provide active neutrinos with masses and mixing, and hence is one of the well-motivated candidate for dark matter. We discuss the sterile neutrino production mechanisms operating in the early Universe and show that additional scalar coupled to sterile neutrino can significantly cha...

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Main Author: Gorbunov Dmitry
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201715805006
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spelling doaj-d3033f3a3ab548b9a1e935371327dcca2021-08-02T16:06:47ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011580500610.1051/epjconf/201715805006epjconf_qfthep2017_05006Sterile neutrino dark matter productionGorbunov DmitrySterile neutrinos provide active neutrinos with masses and mixing, and hence is one of the well-motivated candidate for dark matter. We discuss the sterile neutrino production mechanisms operating in the early Universe and show that additional scalar coupled to sterile neutrino can significantly change the situation, making moderate sterile-neutrino mixing and small sterile neutrino masses consistent with current cosmological and astrophysical bounds. Further searches for a narrow line in galactic X-rays and even direct searches for keV-scale sterile neutrinos in particle physics experiments can probe the suggested setup.https://doi.org/10.1051/epjconf/201715805006
collection DOAJ
language English
format Article
sources DOAJ
author Gorbunov Dmitry
spellingShingle Gorbunov Dmitry
Sterile neutrino dark matter production
EPJ Web of Conferences
author_facet Gorbunov Dmitry
author_sort Gorbunov Dmitry
title Sterile neutrino dark matter production
title_short Sterile neutrino dark matter production
title_full Sterile neutrino dark matter production
title_fullStr Sterile neutrino dark matter production
title_full_unstemmed Sterile neutrino dark matter production
title_sort sterile neutrino dark matter production
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2017-01-01
description Sterile neutrinos provide active neutrinos with masses and mixing, and hence is one of the well-motivated candidate for dark matter. We discuss the sterile neutrino production mechanisms operating in the early Universe and show that additional scalar coupled to sterile neutrino can significantly change the situation, making moderate sterile-neutrino mixing and small sterile neutrino masses consistent with current cosmological and astrophysical bounds. Further searches for a narrow line in galactic X-rays and even direct searches for keV-scale sterile neutrinos in particle physics experiments can probe the suggested setup.
url https://doi.org/10.1051/epjconf/201715805006
work_keys_str_mv AT gorbunovdmitry sterileneutrinodarkmatterproduction
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