R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario

A decay of the gravitino dark matter is an attractive candidate to explain the current excesses of the PAMELA/ATIC cosmic-ray data. However, R-parity violations are required to be very tiny in low-energy scale. We suggest a R-parity violation in the right-handed neutrino sector. The violation is sup...

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Detalles Bibliográficos
Autores principales: Endo, Motoi, Shindou, Tetsuo
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2009/09/037
http://cds.cern.ch/record/1166269
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author Endo, Motoi
Shindou, Tetsuo
author_facet Endo, Motoi
Shindou, Tetsuo
author_sort Endo, Motoi
collection CERN
description A decay of the gravitino dark matter is an attractive candidate to explain the current excesses of the PAMELA/ATIC cosmic-ray data. However, R-parity violations are required to be very tiny in low-energy scale. We suggest a R-parity violation in the right-handed neutrino sector. The violation is suppressed by a see-saw mechanism. Although a reheating temperature is constrained from above, the thermal leptogenesis is found to work successfully with a help of the R-parity violating right-handed neutrino.
id cern-1166269
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-11662692023-03-14T19:17:44Zdoi:10.1088/1126-6708/2009/09/037http://cds.cern.ch/record/1166269engEndo, MotoiShindou, TetsuoR-parity Violating Right-Handed Neutrino in Gravitino Dark Matter ScenarioParticle Physics - PhenomenologyA decay of the gravitino dark matter is an attractive candidate to explain the current excesses of the PAMELA/ATIC cosmic-ray data. However, R-parity violations are required to be very tiny in low-energy scale. We suggest a R-parity violation in the right-handed neutrino sector. The violation is suppressed by a see-saw mechanism. Although a reheating temperature is constrained from above, the thermal leptogenesis is found to work successfully with a help of the R-parity violating right-handed neutrino.A decay of the gravitino dark matter is an attractive candidate to explain the current excesses of the PAMELA/ATIC cosmic-ray data. However, R-parity violations are required to be very tiny in low-energy scale. We suggest a R-parity violation in the right-handed neutrino sector. The violation is suppressed by a see-saw mechanism. Although a reheating temperature is constrained from above, the thermal leptogenesis is found to work successfully with a help of the R-parity violating right-handed neutrino.arXiv:0903.1813CERN-PH-TH-2009-024DESY-09-027CERN-PH-TH-2009-024oai:cds.cern.ch:11662692009-03-11
spellingShingle Particle Physics - Phenomenology
Endo, Motoi
Shindou, Tetsuo
R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario
title R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario
title_full R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario
title_fullStr R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario
title_full_unstemmed R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario
title_short R-parity Violating Right-Handed Neutrino in Gravitino Dark Matter Scenario
title_sort r-parity violating right-handed neutrino in gravitino dark matter scenario
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1126-6708/2009/09/037
http://cds.cern.ch/record/1166269
work_keys_str_mv AT endomotoi rparityviolatingrighthandedneutrinoingravitinodarkmatterscenario
AT shindoutetsuo rparityviolatingrighthandedneutrinoingravitinodarkmatterscenario

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