Gravitino dark matter in split supersymmetry with bilinear R-parity violation

In Split-SUSY with BRpV we show that the Gravitino DM solution is consistent with experimental evidence as regards its relic density and life time. We arrive at this conclusion by performing a complete numerical and algebraic study of the parameter space, including constraints from the recently dete...

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Detalles Bibliográficos
Autores principales: Cottin, G., Díaz, M.A., Guzmán, M.J., Panes, B.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346044_v74_n11_p1_Cottin
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14346044_v74_n11_p1_Cottin2023-10-03T16:14:57Z Gravitino dark matter in split supersymmetry with bilinear R-parity violation Cottin, G. Díaz, M.A. Guzmán, M.J. Panes, B. In Split-SUSY with BRpV we show that the Gravitino DM solution is consistent with experimental evidence as regards its relic density and life time. We arrive at this conclusion by performing a complete numerical and algebraic study of the parameter space, including constraints from the recently determined Higgs mass, updated neutrino physics, and BBN constraints on NLSP decays. The Higgs mass requires a relatively low Split-SUSY mass scale, which is naturally smaller than usual values for reheating temperature, allowing the use of the standard expression for the relic density. We include restrictions from neutrino physics with three generations, and we notice that the gravitino decay width depends on the atmospheric neutrino mass scale. We calculate the neutralino decay rate and find it consistent with BBN. We mention some implications on indirect DM searches. © 2014, The Author(s). JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v74_n11_p1_Cottin
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description In Split-SUSY with BRpV we show that the Gravitino DM solution is consistent with experimental evidence as regards its relic density and life time. We arrive at this conclusion by performing a complete numerical and algebraic study of the parameter space, including constraints from the recently determined Higgs mass, updated neutrino physics, and BBN constraints on NLSP decays. The Higgs mass requires a relatively low Split-SUSY mass scale, which is naturally smaller than usual values for reheating temperature, allowing the use of the standard expression for the relic density. We include restrictions from neutrino physics with three generations, and we notice that the gravitino decay width depends on the atmospheric neutrino mass scale. We calculate the neutralino decay rate and find it consistent with BBN. We mention some implications on indirect DM searches. © 2014, The Author(s).
format JOUR
author Cottin, G.
Díaz, M.A.
Guzmán, M.J.
Panes, B.
spellingShingle Cottin, G.
Díaz, M.A.
Guzmán, M.J.
Panes, B.
Gravitino dark matter in split supersymmetry with bilinear R-parity violation
author_facet Cottin, G.
Díaz, M.A.
Guzmán, M.J.
Panes, B.
author_sort Cottin, G.
title Gravitino dark matter in split supersymmetry with bilinear R-parity violation
title_short Gravitino dark matter in split supersymmetry with bilinear R-parity violation
title_full Gravitino dark matter in split supersymmetry with bilinear R-parity violation
title_fullStr Gravitino dark matter in split supersymmetry with bilinear R-parity violation
title_full_unstemmed Gravitino dark matter in split supersymmetry with bilinear R-parity violation
title_sort gravitino dark matter in split supersymmetry with bilinear r-parity violation
url http://hdl.handle.net/20.500.12110/paper_14346044_v74_n11_p1_Cottin
work_keys_str_mv AT cotting gravitinodarkmatterinsplitsupersymmetrywithbilinearrparityviolation
AT diazma gravitinodarkmatterinsplitsupersymmetrywithbilinearrparityviolation
AT guzmanmj gravitinodarkmatterinsplitsupersymmetrywithbilinearrparityviolation
AT panesb gravitinodarkmatterinsplitsupersymmetrywithbilinearrparityviolation
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