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dc.contributor.author
Knees, Paulina  
dc.contributor.author
Lopez, Daniel Elbio  
dc.contributor.author
Muñoz, Carlos  
dc.date.available
2024-02-22T13:39:39Z  
dc.date.issued
2023-09  
dc.identifier.citation
Knees, Paulina; Lopez, Daniel Elbio; Muñoz, Carlos; Phenomenological implications of sterile neutrinos in the μνSSM and dark matter; Elsevier Science; Astroparticle Physics; 151; 9-2023; 1-24  
dc.identifier.issn
0927-6505  
dc.identifier.uri
http://hdl.handle.net/11336/228034  
dc.description.abstract
We analyze the role of sterile neutrinos in the framework of the μνSSM, where the presence of right-handed neutrinos provides a simultaneous solution to μ- and ν-problems in supersymmetry. We adopt a minimalistic approach, reproducing light neutrino masses and mixing angles at tree-level using just two right-handed neutrinos as part of the seesaw mechanism. A third right-handed neutrino does not contribute significantly to the mass of the three active ones, behaving as a sterile neutrino with a mass in the range keV-MeV. Furthermore, a sterile neutrino of about 10 keV can be a good candidate for dark matter with a lifetime larger than the age of the Universe. In particular, the three-body decay to active neutrinos gives the dominant contribution to its lifetime. The one-loop decay to gamma and active neutrino is subdominant, but relevant for observations such as astrophysical X-rays. We find regions of the parameter space of the μνSSM, with different values of the sterile neutrino mass, fulfilling not only these constraints but also collider constraints from the Higgs sector.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
DARK MATTER  
dc.subject
STERILE NEUTRINOS  
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SUPERSYMMETRY PHENOMENOLOGY  
dc.subject.classification
Física de Partículas y Campos  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Phenomenological implications of sterile neutrinos in the μνSSM and dark matter  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2024-02-22T11:35:03Z  
dc.journal.number
151  
dc.journal.pagination
1-24  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Knees, Paulina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina  
dc.description.fil
Fil: Lopez, Daniel Elbio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires"; Argentina  
dc.description.fil
Fil: Muñoz, Carlos. Consejo Superior de Investigaciones Científicas; España  
dc.journal.title
Astroparticle Physics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.astropartphys.2023.102865