English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/17807
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Right-handed sneutrino dark matter in the NMSSM

AutorCerdeño, David G. ; Seto, Osamu
Palabras claveDark matter theory
Supersymmetry and cosmology
Fecha de publicación26-ago-2009
EditorInstitute of Physics Publishing
International School for Advanced Studies
CitaciónJournal of Cosmology and Astropartcile Physics 08(032): (2009)
ResumenWe study the properties of the right-handed sneutrino and its viability as a WIMP dark matter candidate in an extended version of the NMSSM in which a right-handed neutrino superfield is included with a coupling to the singlet Higgs in order to provide non-vanishing Majorana neutrino masses. We perform a systematic study of the parameter space, including LEP constraints and experimental bounds on low-energy observables. We investigate the conditions under which the right-handed sneutrino has the correct relic abundance and the dominant annihilation channels. Next we calculate the theoretical predictions for the sneutrino-proton elastic scattering cross section and compare it with present and future experimental sensitivities. We find that sneutrinos with a mass in the range of 5-200 GeV can reproduce the observed dark matter relic density without being excluded by direct dark matter searches and for natural values of the input parameters. Interestingly, the predicted scattering cross section is generally within the reach of future experiments. Finally, we comment on the possible implications for collider physics.
Descripción59 pages, 20 figures, 1 table.-- Pre-print archive.
Versión del editorhttp://dx.doi.org/10.1088/1475-7516/2009/08/032
URIhttp://hdl.handle.net/10261/17807
DOI10.1088/1475-7516/2009/08/032
ISSN1475-7516
Aparece en las colecciones: (IFT) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
0903.4677v1.pdf4,27 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.