Right-handed sneutrino as thermal dark matter
| Autor: | Cerdeno, D. G., Munoz, C., Seto, O. |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Phys.Rev.D79:023510,2009 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.79.023510 |
| Popis: | We study an extension of the MSSM with a singlet S with coupling SH1H2 in order to solve the mu problem as in the NMSSM, and right-handed neutrinos N with couplings SNN in order to generate dynamically electroweak-scale Majorana masses. We show how in this model a purely right-handed sneutrino can be a viable candidate for cold dark matter in the Universe. Through the direct coupling to the singlet, the sneutrino can not only be thermal relic dark matter but also have a large enough scattering cross section with nuclei to detect it directly in near future, in contrast with most of other right-handed sneutrino dark matter models. Comment: 5 pages, 2 figures. References added and minor changes. Final version to appear in Phys. Rev. D |
| Databáze: | arXiv |
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