Higgsino-like dark matter from sneutrino late decays
We consider Higgsino-like dark matter (DM) in the Minimal Supersymmetric Standard Model (MSSM) with additional right-handed neutrino chiral superfields, and propose a new non-thermal way of generating the right amount of relic DM via sneutrino late decays. Due to the large DM annihilation cross-sect...
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Formato: | Articulo Preprint |
Lenguaje: | Inglés |
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2017
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/99170 https://ri.conicet.gov.ar/11336/50040 |
Aporte de: |
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I19-R120-10915-99170 |
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institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Física Dark matter Neutrinos Supersymmetry Freeze in |
spellingShingle |
Física Dark matter Neutrinos Supersymmetry Freeze in Medina, Aníbal Damián Higgsino-like dark matter from sneutrino late decays |
topic_facet |
Física Dark matter Neutrinos Supersymmetry Freeze in |
description |
We consider Higgsino-like dark matter (DM) in the Minimal Supersymmetric Standard Model (MSSM) with additional right-handed neutrino chiral superfields, and propose a new non-thermal way of generating the right amount of relic DM via sneutrino late decays. Due to the large DM annihilation cross-section, decays must occur at lower temperatures than the freeze-out temperature Td≪TF,χ˜1 0∼μ/25, implying a mostly right-handed lightest sneutrino with very small Yukawa interactions. In that context, the right amount of Higgsino-like DM relic density can be accounted for if sneutrinos are produced via thermal freeze-in in the early Universe. |
format |
Articulo Preprint |
author |
Medina, Aníbal Damián |
author_facet |
Medina, Aníbal Damián |
author_sort |
Medina, Aníbal Damián |
title |
Higgsino-like dark matter from sneutrino late decays |
title_short |
Higgsino-like dark matter from sneutrino late decays |
title_full |
Higgsino-like dark matter from sneutrino late decays |
title_fullStr |
Higgsino-like dark matter from sneutrino late decays |
title_full_unstemmed |
Higgsino-like dark matter from sneutrino late decays |
title_sort |
higgsino-like dark matter from sneutrino late decays |
publishDate |
2017 |
url |
http://sedici.unlp.edu.ar/handle/10915/99170 https://ri.conicet.gov.ar/11336/50040 |
work_keys_str_mv |
AT medinaanibaldamian higgsinolikedarkmatterfromsneutrinolatedecays |
bdutipo_str |
Repositorios |
_version_ |
1764820493008896000 |