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http://hdl.handle.net/10261/17807
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dc.contributor.author | Cerdeño, David G. | - |
dc.contributor.author | Seto, Osamu | - |
dc.date.accessioned | 2009-10-20T09:37:32Z | - |
dc.date.available | 2009-10-20T09:37:32Z | - |
dc.date.issued | 2009-08-26 | - |
dc.identifier.citation | Journal of Cosmology and Astropartcile Physics 08(032): (2009) | - |
dc.identifier.issn | 1475-7516 | - |
dc.identifier.uri | http://hdl.handle.net/10261/17807 | - |
dc.description | 59 pages, 20 figures, 1 table.-- Pre-print archive. | - |
dc.description.abstract | We 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. | en_US |
dc.description.sponsorship | D.G.C. was supported by the program “Juan de la Cierva” of the Spanish MEC. and also in part by the Spanish DGI of the MEC under Proyecto Nacional FPA2006- 01105, and by the EU network MRTN-CT-2006-035863. O.S. was partly supported by the MEC project FPA 2004-02015 and DOE grant DE-FG02-94ER-40823. We thank the ENTApP Network of the ILIAS project RII3-CT-2004-506222 and the project HEPHACOS P-ESP-00346 of the Comunidad de Madrid. | en_US |
dc.format.extent | 4369198 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | Institute of Physics Publishing | - |
dc.publisher | International School for Advanced Studies | - |
dc.rights | openAccess | en_US |
dc.subject | Dark matter theory | en_US |
dc.subject | Supersymmetry and cosmology | en_US |
dc.title | Right-handed sneutrino dark matter in the NMSSM | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1088/1475-7516/2009/08/032 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/10.1088/1475-7516/2009/08/032 | en_US |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.languageiso639-1 | en | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
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0903.4677v1.pdf | 4,27 MB | Adobe PDF | Visualizar/Abrir |
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